How many moles of nitrogen (N2) are required to produce 32.4 grams of NH3 ?

How Many Moles Of Nitrogen (N2) Are Required To Produce 32.4 Grams Of NH3 ?

Answers

Answer 1

Answer: B

Explanation: Took the test


Related Questions

In an experiment, the reaction of 100. 0 g of iodine produced 144. 9 g of a compound formed from iodine and fluorine. Given that the mass ratio of iodine to fluorine is 2. 23, what is the mass in grams of this compound would be expected to form in the same experiment if you started with 85. 2 g of iodine?.

Answers

The mass of the compound that would be expected to form if 85.2 g of iodine were used in the experiment is 56.0 g. This can be calculated using the mass ratio of iodine to fluorine and the original data.

To find the expected mass of the compound, we first need to calculate the mass of fluorine that was used in the original experiment:

100.0 g iodine x (144.9 g compound / 100.0 g iodine) = 144.9 g compound.

From this, we can find the mass of fluorine by dividing the mass of the compound by the mass ratio of iodine to fluorine:

144.9 g compound / 2.23 = 65.0 g fluorine.

We can then use this data to find the expected mass of the compound that would form if 85.2 g of iodine were used instead:

85.2 g iodine x (65.0 g fluorine / 100.0 g iodine) = 56.0 g compound.

This is the expected mass of the compound that would be produced in the experiment if 85.2 g of iodine were used.

Learn more about Iodine:

https://brainly.com/question/2064871


#SPJ4

Is it true that the effect of a catalyst on a chemical reaction is to react with product, effectively removing it and shifting the equilibrium to the right?

Answers

No, it is not true that the effect of a catalyst on a chemical reaction is to react with product, effectively removing it and shifting the equilibrium to the right.

A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy required for the reaction to occur. It achieves this by providing an alternative reaction pathway with a lower activation energy. The catalyst itself is not consumed in the reaction and is therefore not considered a reactant or a product.

A catalyst does not shift the equilibrium of a chemical reaction, but it can help the reaction reach equilibrium more quickly. Once the reaction reaches equilibrium, the catalyst can speed up the rate of the forward and reverse reactions equally, keeping the concentrations of reactants and products constant.

In summary, the function of a catalyst is to increase the rate of a chemical reaction without being consumed itself and does not affect the position of equilibrium.

Learn more about catalyst here:

https://brainly.com/question/28813725

#SPJ4

The voltage produced by the colorimeter is __________ to the absorbance of the sample and ____________ to the light intensity.
-Directly proportional, indirectly proportional
-Directly proportional, directly proportional
-Indirectly proportional, indirectly proportional
-Indirectly proportional, directly proportional
-None of the above

Answers

The voltage produced by the colorimeter is directly proportional to the absorbance of the sample and directly proportional to the light intensity.

What is colorimeter?

A colorimeter is a tool used to measure color. The colorimeter is sensitive to the light being measured and how much color is absorbed by an object or substance. The colorimeter determines color based on the red, blue, and green components of the light absorbed by the object or sample.

There are different types of colorimeters, including color densitometers, which measure the density of primary colors, and color photometers, which measure reflection and color transmittance.

So that the voltage generated by the colorimeter is directly proportional to the absorbance of the sample and directly proportional to the intensity of the light

Learn more about colorimeter wavelength selection here :

https://brainly.com/question/3277193

#SPJ4

QuestionWhich of the following sets of quantum numbers is permissible for an electrons in an atom?An=1,l=1,m=0,s=+ 21â Bn=3,l=1,m=â2,s=â 21â Cn=2,l=1,m=0,s=+ 21â Dn=2,l=0,m=0,s=1Medium

Answers

Correct option is (c). The set of quantum numbers is permissible for an electrons in an atom is n = 2, l=1, m=0, s= + 1/2.

There are total of four quantum numbers are used to describe completely the movement of each electron within an atom. The combination of all the quantum numbers in an atom is described by a wave function. Each of the electron in an atom has a unique set of quantum numbers. Quantum numbers can be used to determine the electron configuration of an atom and the probable location of the electrons of an atom. It is used to understand other characteristics of atoms such as ionization energy and the atomic radius. It describes the values of conserved quantities in the dynamics of a quantum system.

To learn more about Quantum numbers please visit:

https://brainly.com/question/2292596

#SPJ4

The correct question is,

Which of the following sets of quantum numbers is permissible for an electrons in an atom?

A. n=1, l=1, m=0, s =+ 1/2

B. n=3, =1, m=2, s= - 1/2

C. n=2, l=1, m=0, s= + 1/2

D. n=2, l=0, m=0, s=1

what is the ca3po42 molar mass?

Answers

The Ca₃(PO₄)₂ molar mass is 310 g/mol. The name of the compound Ca₃(PO₄)₂ is the calcium phosphate.

The chemical name of the compound with the formula of Ca₃(PO₄)₂ is the calcium phosphate. The calcium phosphate is the ionic compound that means the calcium phosphate is formed by the complete transfer of the electrons.

The molar mass of the calcium = 40 g/mol

The molar mass of the phosphorus = 31 g/mol

The molar mass of the oxygen = 16 g/mol

The molar mass of the Ca₃(PO₄)₂ = 3 (40) + 2 (31) + 16 (8)

The molar mass of the Ca₃(PO₄)₂ = 310 g/mol

To learn more about molar mass here

https://brainly.com/question/22997914

#SPJ4

A 2.914 g sample of gypsum, a hydrated salt of calcium sulfate (CaSO4) is heated at a temperature greater than 170C in a crucible until a constant mass is reaced. The mass of the anhydrous CaSO4 salt is 2.304 g. Calculate the percent by mass of water in the hydrated calcium sulfate.

Answers

The percent by mass of water in the hydrated calcium sulfate is 20.95%.

What is mass?

Mass is a fundamental property of matter that represents the amount of matter in an object. It is a scalar quantity that is measured in kilograms (kg) or grams (g), and it is always conserved in any physical or chemical process.

To calculate the percent by mass of water in the hydrated calcium sulfate, we need to determine the mass of water that was present in the hydrated salt before heating. We can then use this value to calculate the percent by mass of water as follows:

Determine the mass of water lost during heating:

Mass of water = Mass of hydrated salt - Mass of anhydrous salt

Mass of water = 2.914 g - 2.304 g

Mass of water = 0.610 g

Calculate the percent by mass of water:

Percent by mass of water = (Mass of water / Mass of hydrated salt) x 100%

Percent by mass of water = (0.610 g / 2.914 g) x 100%

Percent by mass of water = 20.95%

Therefore, the percent by mass of water in the hydrated calcium sulfate is 20.95%.

To learn more about mass:

https://brainly.com/question/1838164

#SPJ4

Calculate the mass of sodium acetate trihydrate required to make 100. Ml of a 0. 100 m solution.

Answers

The mass of sodium acetate trihydrate required to make 100ml of a 0. 100 m solution is 82g.

Mass is an intrinsic property of a body. It was customarily accepted to be connected with the amount of issue in an actual body, until the disclosure of the iota and molecule material science. It was tracked down that various molecules and different rudimentary particles, hypothetically with a similar measure of issue, have in any case various masses. Mass in present day physical science has different definitions which are adroitly unmistakable, yet all at once genuinely same. Mass can be tentatively characterized as a proportion of the body's idleness, meaning the protection from speed increase (change of speed) when a net power is applied.[1] The item's mass likewise decides the strength of its gravitational fascination with different bodies.

We know that Molarity=number of mole of solute /volume of any solution(solvent) in ml.

Here,we have volume of solution=100ml

also molarity(concentration)=0.100M

Also number of moles of solute=mass of solute/atomic weight of solute.

We know that atomic weight of  sodium acetate trihydarte=82g

So,0.1=(x/82) / 100

=>0.1×82×100=x

=>x=82g

Hence,required mass of sodium acetate trihydrate is 82g.

To know more about mass,visit here:

https://brainly.com/question/10033868

#SPJ4

Select the compound with the greatest surface tension in the liquid phase? A. NBr3 B. NF3 C. NCl3

Answers

The correct option is C. the compound with the greatest surface tension in the liquid phase: NCl3.

The four nitrogen compounds gave comprise of a nitrogen iota reinforced with three molecules of a halogen. That means every one of the four compounds have similar number of iotas and a similar focal molecule yet with an alternate halogen in each compound. The data got some information about are bond length and extremity, which rely upon atomic size and electronegativity. Since the focal molecule is something similar and the wide range of various iotas have a place with a similar gathering then the pattern for atomic size and electronegativity is utilized to decide the overall bond length and extremity.

Going down the gathering of halogens, the atomic size increments and electronegativity diminishes. The compound with the longest bond is the compound with the biggest, and least electronegative, halogen, which is iodine. In this way, nitrogen triiodide has the longest bonds. Concerning extremity, fluorine is the most electronegative and iodine is the most un-electronegative with chlorine being equivalent to nitrogen in electronegativity. Subsequently, nitrogen trifluoride has the most polar bonds and nitrogen triiodide has the most un-polar bonds.

to know more about halogen click here:

https://brainly.com/question/1450671

#SPJ4

What is molar mass of acetone?

Answers

The molar mass of acetone is approximately 58.08 g/mol.

The chemical formula of acetone is C₃H₆O. To calculate its molar mass, we need to find the atomic masses of each element in the compound and then add them up based on the molecular formula.

The atomic masses of carbon (C), hydrogen (H), and oxygen (O) are 12.01 g/mol, 1.01 g/mol, and 16.00 g/mol, respectively.

The molar mass of acetone can be calculated as follows:

Molar mass of acetone = (3 x atomic mass of C) + (6 x atomic mass of H) + (1 x atomic mass of O)

Molar mass of acetone = (3 x 12.01 g/mol) + (6 x 1.01 g/mol) + (1 x 16.00 g/mol)

Molar mass of acetone = 58.08 g/mol

To know more about molar mass here

https://brainly.com/question/22997914

#SPJ4

Why is potassium important for our body? What are the healthy levels of potassium intake?

Answers

Potassium is important for maintenance a normal blood pressure in our body. The healthy levels of potassium intake is 4700 mg for an adult.

Potassium is found naturally in many foods and supplements. The main role of the body is to maintain normal fluid levels inside the cells. Potassium also helps muscle contraction and maintains normal blood pressure. Higher intakes may help reduce the risk of high blood pressure, salt sensitivity and stroke. It can also prevent osteoporosis and kidney stones. Sources of potassium include dried apricots, lentils, pumpkin, prunes, potatoes, beans and bananas. The average adult's recommended potassium intake is 4,700 milligrams (mg) per day.

To learn more about potassium, visit :

https://brainly.com/question/29897293

#SPJ4

What type of isomer is hexane?

Answers

Hexane is a type of structural isomer.

Structural isomers are molecules that have the same molecular formula but different arrangements of atoms. In the case of hexane, it is an organic compound with the molecular formula [tex]C_6H_{14}[/tex], and it has five different isomers due to the different arrangements of its carbon atoms.

The simplest form of hexane is n-hexane, which has a straight chain of carbon atoms. The other four isomers, 2-methylpentane, 3-methylpentane, 2,3-dimethylbutane, and 2,2,3-trimethylbutane, all have branching in their carbon chains.

To know more about the hexane, here

brainly.com/question/30549157

#SPJ4

How does the existence of atoms explain the conservation of matter? Why do we need to use moles when we try to determine amounts of reactants and products in a reaction?

Answers

Atoms are the basic building blocks of matter, and since atoms are indestructible, the matter they comprise of is conserved.

We use moles when determining amounts of reactants and products in a reaction because moles allow us to express amounts of substances in terms of the number of atoms or molecules present.

What is molecules?
Molecules are the smallest units of a chemical compound that can exist on its own. They are made up of two or more atoms bonded to each other, forming a unique chemical structure. Molecules are the building blocks of all matter, and they can be found in nature as well as in artificially created compounds. Molecules can be simple or complex, and they can range in size from a few atoms to millions of atoms. They interact with each other, giving rise to chemical reactions. Molecules are essential to life, and understanding how they interact is essential to understanding chemistry.

To learn more about molecules

Here: https://brainly.com/question/26044300

#SPJ4

An NaCl solution is prepared by dissolving 20.0 g NaCl in 150.0 g of water at 25°C. What is the vapor pressure of the solution if the vapor pressure of water at 25°C is 23.56 torr? 0.9304 torr O 0.4746 torr 21.77 torr O 0.8950 torr 22.63 torr

Answers

If the vapor pressure of water at 25°C is 23.56 torr, then the vapor pressure of the solution is 21.77 torr.

According to thye question,

Mass of NaCl = 20.0 g

Molar mass of NaCl = 58.5 g/mol

Moles of NaCl = Given mass/ Molar mass [tex]=\frac{20}{58.5} =0.34188[/tex]

NaCl in aqueous solution completely dissociates as:

Moles of Na+ = 0.34188

Moles of Cl- =  0.34188

Given, mass of water = 150.0 g

Water has a molar mass of 18 g per mol.

Moles of water [tex]=\frac{150}{18}=8.33333[/tex]

Therefore, total moles in solution

=  Moles of water +  Moles of Na+ + Moles of Cl-

=  8.33333 +  0.34188  +   0.34188

= 9.017

Mole fraction of water in solution

= Moles of water/ Total moles

[tex]\frac{8.33333}{9.017} =0.9242[/tex]

Again, From Raoult's law,

We know,

Water's solution's vapor pressure as a volatile component

=  (Mole fraction of water) x (Vapor pressure of pure water)

= 0.9242 x 23.56  torr

= 21.77 torr

Learn more about Raoult's law

brainly.com/question/28304759

#SPJ4

What is a simple definition of pressure?

Answers

Pressure can be defined as the force applied per unit area on a surface.



It is a measure of how much force is exerted on an area of a surface. The SI unit for pressure is the Pascal (Pa), which is equivalent to one Newton (N) of force per square meter (m²) of area.

In simpler terms, pressure is the amount of force applied to a surface divided by the area of that surface. The greater the force applied to a surface, the greater the pressure; and the larger the surface area, the lower the pressure.

Pressure is an important concept in science and engineering, and is used in a variety of applications, such as measuring atmospheric pressure, hydraulic pressure, and blood pressure.

To know more about Pressure here:

https://brainly.com/question/12497098#

#SPJ11

Compare the emissions of a propane burning car to that of a car burning regular gasoline. Which pumps out more pollution? For simplicity, assume gasoline to be 100% octane (2,2,4- trimethylpentane). 2. For each fuel, calculate how many kilograms of CO2 pollution are produced from a single tank of gas. Assume a tank of gas holds 40.0 kg of fuel. (Show dimensional analysis steps.)​

Answers

To compare the emissions of a propane-burning car to that of a gasoline-burning car, we need to calculate the amount of CO2 produced from a single tank of gas for each fuel. Here's how it can be done:

Propane:

A single tank of propane contains 40.0 kg of fuel. From the balanced equation for propane combustion, we know that for every 1 mole of propane burned, 3 moles of CO2 are produced.

We can use the molar mass of propane (44.1 g/mol) to convert the amount of fuel to moles:

40.0 kg × 1000 g/kg ÷ 44.1 g/mol = 909.1 moles

So, 909.1 moles of propane would be burned, producing:

909.1 moles × 3 moles CO2/1 mole propane = 2727.3 moles CO2

Finally, we can use the molar mass of CO2 (44.0 g/mol) to convert the amount of CO2 to grams:

2727.3 moles × 44.0 g/mol = 120167.2 g

And then, to convert the amount of CO2 to kilograms:

120167.2 g ÷ 1000 g/kg = 120.2 kg CO2

So, from a single tank of propane, 120.2 kg of CO2 would be produced.

Gasoline (2,2,4-trimethylpentane):

A single tank of gasoline contains 40.0 kg of fuel. From the balanced equation for gasoline combustion, we know that for every 1 mole of gasoline burned, 8 moles of CO2 are produced.

We can use the molar mass of gasoline (114.2 g/mol) to convert the amount of fuel to moles:

40.0 kg × 1000 g/kg ÷ 114.2 g/mol = 349.6 moles

So, 349.6 moles of gasoline would be burned, producing:

349.6 moles × 8 moles CO2/1 mole gasoline = 2796.8 moles CO2

Finally, we can use the molar mass of CO2 (44.0 g/mol) to convert the amount of CO2 to grams:

2796.8 moles × 44.0 g/mol = 122957.1 g

And then, to convert the amount of CO2 to kilograms:

122957.1 g ÷ 1000 g/kg = 122.9 kg CO2

So, from a single tank of gasoline, 122.9 kg of CO2 would be produced.

From the calculations above, we can see that a car burning gasoline produces slightly more CO2 than a car burning propane from a single tank of fuel.

What combinations of positive or negative ΔH, and positive or negative Δs, can indicate a spontaneous reaction according to the Gibbs free energy equation (ΔG- ΔH-TΔS) . ΔH is the enthalpy change • ΔS is the entropy change • ΔG is the Gibbs free energy change - ΔS,-ΔH - ΔS, +ΔΗ - +ΔS.+ΔH -+ΔS.-ΔH

Answers

The correct combination holding the potential to indicate spontaneous reactions is +ΔS, -ΔH.

As the naming of both ∆H and ∆S is given, so let us understand their definition. Enthalpy is representative of total energy of the system along with product of pressure and volume. It refers to energy content.

Entropy, on the other hand, is randomness or unavailable energy of a system. Now spontaneity of the reaction refers ability to carry out a reaction without requiring external energy. As obvious, the system with excess energy or releasing the energy and less unusable energy can carry out spontaneous reaction.

Learn more spontaneous reaction -

https://brainly.com/question/14061406

#SPJ4

PLEASE HELP ASAPP!!!!! How many grams of H3PO3 would be produced from the complete reaction of 93.2 grams P2O3? What goes in all the boxes

Answers

138.908g of H3PO3 would be produced from the complete reaction of 93.2 grams P2O3. 110 gram of P2O3 goes in the green box.

What is mole ?

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

In first  step we have to calculate  the  number  of  moles  of  P2O3   reacted

mole = mass  divided  by  RFM

RFM  of  P2O3 = 110

moles are = 93.2/110

= 0.847moles

Therefore, the  reacting  ratio  of  P2O3 to H3PO3   is  1:2  moles  of  H3PO4 = 0.847  x 2  

= 1.694moles

mass = moles  x  RFM  of  H3PO3

1.694  x 82

= 138.908g

Thus, 138.908g of H3PO3 would be produced from the complete reaction of 93.2 grams P2O3.

To learn more about the mole, follow the link;

https://brainly.com/question/26416088

#SPJ1

What might cause the mass of a product] to be more than the theoretical mass

Answers

Might cause the mass of a product to be more than the theoretical mass are impurities, incomplete reactions, and measurement errors.

There are several factors that could cause the mass of a product to be more than the theoretical mass:
1. Impurities: If there are impurities present in the reactants or the product, this could cause the mass of the product to be more than the theoretical mass.
2. Incomplete reactions: If the reaction is not allowed to go to completion, there may be unreacted reactants left in the product, which could increase the mass of the product.
3. Measurement errors: If there are errors in the measurement of the reactants or the product, this could cause the mass of the product to be more than the theoretical mass.

In conclusion, impurities, incomplete reactions, and measurement errors are all factors that could cause the mass of a product to be more than the theoretical mass.

Learn more about reactants at:

https://brainly.com/question/30639017

#SPJ11

Use the table below to answer the question.

Characteristics of Selected Bacteria, Viruses, and Fungi

Name Bacterium, Virus, or Fungus? Structure Reproduction Method Energy Source
Enterobacteria phage λ virus spherical head made up of a protein coat that contains linear DNA connected to a long, flexible tail infects a bacterial cell and uses the host cell's structures to make copies of itself no internal energy source needed
Escherichia coli bacterium rod-shaped cell with DNA contained within the cell's cytoplasm reproduces asexually through binary fission or conjugation (transfer of genetic material) between two bacteria breakdown of glucose to release energy
Streptococcus pyogenes bacterium spherical cell with DNA contained within cell's cytoplasm reproduces asexually through binary fission or conjugation (transfer of genetic material) between two bacteria breakdown of glucose to release energy
Saccharomyces cerevisiae fungus oblong cell with DNA contained in a membrane-bound nucleus can reproduce asexually through budding or sexually through spore production breakdown of glucose to release energy
Influenza A virus virus spherical with a lipid membrane surrounding a protein lining that contains RNA infects animal cells and uses the host cell's structures to make copies of itself no internal energy source needed

While viruses are not living organisms, they do share some characteristics with living organisms such as bacteria and fungi. Which of the following describes a characteristic that viruses have in common with living organisms?
A.
Viruses are not made up of cells.
B.
Viruses contain genetic information in the form of DNA or RNA.
C.
Viruses cannot reproduce without infecting living cells.
D.
Viruses do not have any energy requirements.

Answers

The characteristic that viruses have in common with living organisms is viruses contain genetic information in the form of DNA or RNA. The correct option is B.

What are viruses?

Viruses are an entity that is not living unless they get a living host, they reproduce on a living host.

Nucleic acid makes up the genetic material (or genome) of all viruses. DNA serves as your genetic material, just like it does in all other cell-based life. Yet, viruses can utilize either RNA or DNA, which are both classes of nucleic acid.

Therefore, the correct option is B. Viruses contain genetic information in the form of DNA or RNA.

To learn more about viruses, visit here:

https://brainly.com/question/30428438

#SPJ1

How do you write lithium sulfide?

Answers

The formula for lithium sulfide is Li2S, indicating two lithium atoms and one sulfur atom in each molecule.

Lithium sulfide is a binary ionic compound made out of lithium and sulfur. Its synthetic equation is Li2S. This equation shows that every particle of lithium sulfide contains two lithium molecules and one sulfur iota. Lithium sulfide is an unscented, white or light dim strong that is solvent in water and delivers a soluble arrangement. It is areas of strength for a specialist and responds overwhelmingly with water to create lithium hydroxide and hydrogen sulfide gas. Lithium sulfide is in many cases utilized as a beginning material for the union of other lithium compounds and as a part in lithium-particle batteries, which are broadly utilized in compact electronic gadgets.

To learn more about lithium sulfide, refer:

https://brainly.com/question/24410840

#SPJ4

A gamma ray of wavelength 1.00 X 10^-8 cm has enough energy to remove an electron from a hydrogen atom. The answer that is given is T. Please show step by step formulas, and solution for this . I have no idea where to start?

Answers

To determine if a gamma ray of a given wavelength has enough energy to remove an electron from a hydrogen atom, we need to calculate the energy of the gamma ray and compare it to the ionization energy of a hydrogen atom.

First, let's calculate the energy of the gamma ray. The energy of a photon can be calculated using the equation:

E = hc/λ

where:

h = Planck's constant (6.626 x 10^-34 J s)

c = speed of light (2.998 x 10^8 m/s)

λ = wavelength of the gamma ray (1.00 x 10^-8 cm)

Now we can plug in the values:

E = (6.626 x 10^-34 J s) * (2.998 x 10^8 m/s) / (1.00 x 10^-8 m)

E = 1.98 x 10^-18 J

Next, let's calculate the ionization energy of a hydrogen atom. The ionization energy of hydrogen is the minimum amount of energy required to remove an electron from the hydrogen atom. It is given as 13.6 eV, which can be converted to joules:

13.6 eV * 1.60 x 10^-19 J/eV = 2.18 x 10^-18 J

Finally, we compare the energy of the gamma ray (1.98 x 10^-18 J) to the ionization energy of hydrogen (2.18 x 10^-18 J). Since the energy of the gamma ray is less than the ionization energy of hydrogen, we can conclude that it does not have enough energy to remove an electron from a hydrogen atom.

Learn more about gamma ray:

https://brainly.com/question/1549078

#SPJ4

What is the molecular mass and molar mass of carbon monoxide ?

Answers

The molecular mass and molar mass of carbon monoxide are both 28.01 g/mol.

Molecular mass is the mass of one molecule of a substance, measured in atomic mass units (amu). Molar mass is the mass of one mole of a substance, measured in grams per mole (g/mol).

To find the molecular mass of carbon monoxide, we add the atomic mass of carbon (12.01 amu) to the atomic mass of oxygen (16.00 amu):
12.01 amu + 16.00 amu = 28.01 amu.


Since the molecular mass and molar mass are numerically equivalent, the molar mass of carbon monoxide is also 28.01 g/mol.

To know more about molecular mass here:

https://brainly.com/question/15880821#

#SPJ11

Why is it necessary to measure the absorbance of each solution at two different wavelengths?

Answers

Measuring absorbance at two wavelengths is necessary to differentiate between compounds with similar absorption spectra, and determine their concentrations in a solution. This is important in analytical chemistry, particularly spectrophotometry and colorimetry.

What is absorbance?

Absorbance is a measure of how much light is absorbed by a substance as it passes through a solution. It is calculated as the logarithm of the ratio of the intensity of incident light to the intensity of transmitted light, according to the Beer-Lambert law. The more a substance absorbs light, the higher its absorbance will be. Absorbance is commonly used in analytical chemistry to determine the concentration of a particular analyte within a solution, based on its absorbance characteristics at specific wavelengths.

Hence, the answer is, measuring absorbance at two wavelengths is necessary to differentiate between compounds with similar absorption spectra, and determine their concentrations in a solution.

To learn more about absorbance, follow the link:

https://brainly.com/question/23938376

#SPJ4

What is the formula for dimensional analysis?

Answers

Answer:

Q=M,L,T then MLT is called the dimension formula and the components a,b,c are called the dimension

PLEASE HELP ASAP!!
Element X has two isotopes. The first isotope has a natural abundance of 70% and has a mass of 50 amu. The second isotope has a natural abundance of 30% and has a mass of 54 amu. Is the average mass going to be closer to 50 or 54 amu and why?

Answers

The average mass of element X is 51.2 amu, which is closer to 54 amu than to 50 amu.

What are isotopes?

Isotopes are variants of an element that have the same number of protons in their atomic nuclei but different numbers of neutrons.

To determine whether the average mass of the element X is going to be closer to 50 amu or 54 amu, we can calculate the weighted average of the masses of the two isotopes, taking into account their natural abundances.

The formula for calculating weighted average is:

avg mass = (abundance of isotope 1 * mass of isotope 1) + (abundance of isotope 2 * mass of isotope 2)

In this case, we have:

abundance of isotope 1 = 70%

mass of isotope 1 = 50 amu

abundance of isotope 2 = 30%

mass of isotope 2 = 54 amu

Upon substituting the values into the formula, we get:

average mass = (0.7 * 50 amu) + (0.3 * 54 amu)

average mass = 35 amu + 16.2 amu

average mass = 51.2 amu

So the average mass of element X is 51.2 amu, which is closer to 54 amu than to 50 amu. This is because the second isotope has a higher mass and a higher natural abundance than the first isotope, so it contributes more to the overall mass of the element X.

To know more about Isotopes, visit:

https://brainly.com/question/11680817

#SPJ1

An infant ibuprofen suspension contains 100 mg/ 5. 0 ml suspension. The recommended dose is 10 mg/kg body weight.

Answers

The volume of the suspension that should be given to an infant weighing 18 lb would be 4.05 mL.

Dimensional analysis

The suspension contains 100 mg in 5 mL.

The recommended dosage is 10 mg per kg body weight.

Weight of infant = 18 lb

1 lb = 0.45 kg

18 lb = 0.45 x 18

        = 8.1 kg

1 kg body weight = 10 mg

8.1 kg body weight = 10 x 8.1

                               = 81 mg

100 mg = 5 mL

81 mg = 81x5/100

           = 4.05 mL

In other words, the volume of the suspension that should be given to an infant weighing 18 lb would be 4.05 mL.

More on dimensional analysis can be found here: https://brainly.com/question/4992487

#SPJ1

An ibuprofen suspension for infants contains 100 mg>5.0 mL suspension. The recommended dose is 10 mg>kg body weight. How many mL of this suspension should be given to an infant weighing 18 lb? (Assume two significant figures.)

what is the common name of the rectangular vessel where the solution to be analyzed by uv-vis spectrometry is poured into?

Answers

The common name of the rectangular vessel where the solution to be analyzed by UV-Vis spectrometry is poured into is a "cuvette" or "spectrophotometer cuvette". A cuvette is a small rectangular container made of clear optical grade glass, quartz, or plastic material, which is designed to hold the sample solution and allow light to pass through it for analysis. Cuvettes are widely used in spectrophotometry and other forms of optical spectroscopy, and are available in a range of sizes and path lengths depending on the specific application.

What is UV-Vis spectrometry?

UV-Vis spectrometry is a technique that uses ultraviolet and visible light to measure the absorbance or transmission of light by a sample. It is commonly used in analytical chemistry to determine the concentration of a substance in a solution, based on its absorbance characteristics at specific wavelengths. This technique can provide valuable information about the electronic structure, concentration, and purity of a sample, making it a powerful tool in many fields of research and industry.

Hence, the answer is the common name of the rectangular vessel where the solution to be analyzed by UV-Vis spectrometry is poured into is a "cuvette" or "spectrophotometer cuvette".

To learn more about UV-Vis spectrometry, follow the link:

https://brainly.com/question/16982345

#SPJ4

how to using watch glass chemistry?

Answers

Watch glass is used in weighing desired amount of solid.

Watch glass is majorly used in weighing desired amount of solid that is to be used in chemical reaction, a watch glass is often placed on the scale, which is then followed by taring or zeroing of the scale so that only the weight of the sample substance is obtained excluding the weight of the watch glass. A watch glass is not only used for observing precipitation patterns and crystals, it is also used for drying solids.

A watch glass is generally round in shape, it is concave glass dish which is used for evaporation in chemistry. Watch glass can also be employed for weighing solids and as a lid for flasks and beakers.

Hence, watch glass is one of the useful component of chemistry lab.

Learn more about watch glass from the link given below.

https://brainly.com/question/10936221

#SPJ4

Pea Plants Ck-12
The study of variation and inheritance is called

Answers

The study of variation and inheritance is called genetics.  "Inheritance being defined as a technique through which the qualities and attributes are passed

What is inheritance?

The term 'Inheritance' comes a contraction of the word "Inherit" that means, "to inherit any trait, attributes or traits from family". Therefore, "Inheritance being defined as a technique through which the qualities and attributes of the super class or even other derived classes are passed down to the sub or child class.

It also has the ability to take characteristics first from child class and use them in other derived classes." The study of variation and inheritance is called genetics.

Therefore, the study of variation and inheritance is called genetics.

To learn more about inheritance, here:

https://brainly.com/question/13164946

#SPJ9

What is the longest and shortest stage of the cell cycle?

Answers

Interphase is the longest stage of the cell cycle.The mitotic phase, also known as the M phase, is the shortest stage of the cell cycle.

The longest phase of the cell cycle is interphase, which is further subdivided into G1 (Gap 1), S (Synthesis), and G2 (Gap 2). The cell develops, copies its DNA, and gets ready to divide during interphase. Cellular activity and growth occur during the G1 phase, DNA replication takes place during the S phase, and cell expansion and preparation for cell division occur during the G2 phase.

The shortest phase of the cell cycle is the mitotic phase, sometimes referred to as the M phase. The cell splits its cytoplasm and nucleus to create two daughter cells during this phase. The two main steps of the M phase are mitosis (nuclear division) and cytokinesis (cytoplasmic division). Mitosis entails the division of cells.

For such more questions on Interphase :

brainly.com/question/30622117

#SPJ4

Other Questions
Land plants life cycles feature alternation of generations. Which of the following statements about alternation of generations is false?A. The life cycle includes both a diploid and haploid multicellular statge.B. Gametes are not produced by mitosisC. Gametes fuse to form zygoteD. The life cycle includes A multicellular spore-producing generationE. Sporangia undergo meiosis to produce haploid unicellular spores Suppose you are a member of the British Parliament in 1763. Explain the Proclamation of 1763 to the other members of Parliament. Tell them why it is fair and why it is necessary. let r be a region in quadrant i with centroid (3,5) and area 12 unit square. find the volume of the solid formed when this region is rotated around the y-axis. describe the characteristics of each parabola without graphingf (x) = -3x^2A. compression by 3, reflected over x-axisB. stretch by 3, reflected over x-axisC. stretch by 3, reflected over y-axisD. compression by 3, reflected over y-axis g f psychologists discovered that people with more money are more satisfied with their marriages than people with less money are, this would indicate that wealth and marital satisfaction are question 1 options: negatively correlated. independent variables. causally related. positively correlated. what is zinc's atomic number? What adventures are in Candlekeep Mysteries? according to the critical infrastructure sector risk snapshot, all of the following are first-order dependencies except: HELP ME ON THIS QUESTION PLEASE! Inga is solving 2x2 + 12x 3 = 0. Which steps could she use to solve the quadratic equation? Select three options. 2(x2 + 6x + 9) = 3 + 18 2(x2 + 6x) = 3 2(x2 + 6x) = 3 x + 3 = Plus or minus StartRoot StartFraction 21 Over 2 EndFraction EndRoot 2(x2 + 6x + 9) = 3 + 9 Suppose the ratio of Lev's age to Mina's age is 1 : 2 and the ratio of Mina's age to Naomi's age is 3 : 4.If the sum of all three ages is between 30 and 50, then how old is Mina? Technology Needs Template Certified Public Accountant (CPA) The CPA is a senior position at a tax preparation company. The CPA will be not only handling sensitive customer data from personal tax returns but also preparing tax returns for corporate clients. The CPA is also responsible for the personal tax returns filled out by the tax and data-entry specialist employees. Hardware Components Software Security Measures Human Computer Interaction (HCI) Networking Equipment Tax Specialist The tax specialist has the dual role of entering data and verifying that tax returns are correct. This position involves customer interaction in gathering data for minimizing taxes owed or maximizing tax refunds. Hardware Components Software Security Measures Human Computer Interaction (HCI) Networking Equipment Data Entry Specialist Ohis position requires data entry for personal tax returns for customers who walk in the door. Although the data-entry specialist works with sensitive customer data, they do not have access to the tax returns once the returns are submitted to the tax specialist for review. Hardware Components Software Security Measures Human Computer Interaction (HCI) Networking Equipment What is the definition of humanities? Observe the diagram of the water cycle. Fill in the state changes with each step. Then, in the space provided, explain the change of state that occurs as water moves from one part of the water cycle to another. Ethan is 1.85 meters tall. At 10 a.m., he measures the length of a tree's shadow to be 28.45 meters. He stands 24.3 meters away from the tree, so that the tip of his shadow meets the tip of the tree's shadow. Find the height of the tree to the nearest hundredth of a meter. I need help with the question ASAP an unexamined life is not worth living. whose quote is that? michael is being discharged home with his parents. the parents are concerned about recurrent infection with rsv and ask what can be done to lessen the chance of a reinfection. what is the symbolism definition literature What 2 countries signed a pact in 1939?Why did they make the agreement?Why did the Nazi invasion of Polandstart WWII?Who defended Britain against the Nazi Luftwaffe?What technologic advantage did they have?1940Why did France fall so easily tothe Nazis?