The repulsive force between 2 electrons has a magnitude of 4.00 n. calculate the distance between the electrons

Answers

Answer 1

The distance between the two electrons is approximately 5.30 x 10^-11 meters.

To calculate the distance between two electrons given the repulsive force between them, we can use Coulomb's Law, which states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

In this case, we know that the repulsive force between two electrons is 4.00 n (newtons), and we can assume that the charges of the electrons are equal (since they are both electrons). The charge of an electron is approximately -1.602 x 10^-19 coulombs.

Using Coulomb's Law, we can solve for the distance between the electrons:

F = k * q^2 / d^2

where F is the force between the charges, k is Coulomb's constant (approximately 9 x 10^9 Nm^2/C^2), q is the charge of each electron (-1.602 x 10^-19 C), and d is the distance between the electrons (what we want to solve for).

Plugging in the given values, we get:

4.00 n = (9 x 10^9 Nm^2/C^2) * (-1.602 x 10^-19 C)^2 / d^2

Solving for d, we get:

d = sqrt[(9 x 10^9 Nm^2/C^2) * (-1.602 x 10^-19 C)^2 / (4.00 n)]

d = 5.30 x 10^-11 meters (or 0.053 nanometers)

Therefore, the distance between the two electrons is approximately 5.30 x 10^-11 meters (or 0.053 nanometers).

To learn more about force, refer below:

https://brainly.com/question/13191643

#SPJ11


Related Questions

hich of the following is an oxidation-reduction reaction?
ZnS(s) + 2O2(g) Right arrow. ZnSO4(s)
CaO(s) + H2O(l) Right arrow. Ca(OH)2(s)
6Li2O(s) + P4O10(g) Right arrow. 4Li3PO4(s)
SO2(g) + H2O(l) Right arrow. H2SO3(aq)

Answers

The oxidation-reduction reaction from the reactions above is

ZnS(s) + 2O2(g) ------ ZnSO4(s)

What is redox reactions?

Oxidation-reduction or redox reaction is the type of chemical reaction in which oxidation states of substrate changes

So therefore, the oxidation-reduction reaction from the reactions above is

ZnS(s) + 2O2(g) ------ ZnSO4(s)

Learn more about oxidation-reduction reactions:

https://brainly.com/question/10668495

#SPJ1

Which of the following explanations accounts for the fact that the ion-solvent interaction is greater for Li than for K

Answers

Li+ has a smaller ionic radius than K+

and smaller molecules have more collisions/interactions between each other

What is ion-solvent interaction ?

In the case of ion-solvent interactions, the state in which the interac-tions exist is an obvious one; it is the situation in which ions are inside the solvent.

Ions are charged particles, and charges interact with other charges. So there will also be ion-ion, as well as ion-solvent, interactions in the solution.

In the process of solvation, ions are surrounded by a concentric shell of solvent. Solvation is the process of reorganizing solvent and solute molecules into solvation complexes.

Learn more about Ion-solvent interaction here:

https://brainly.com/question/21307101

#SPJ4

he expression below was formed by combining different gas laws.

V is proportional to StartFraction n T over P EndFraction.

Which law was used to determine the relationship between the volume and the number of moles in this equation?
Boyle’s law
Charles’s law
Avogadro’s law
Gay-Lussac’s law

Answers

C. The law that was used to determine the relationship between the volume and the number of moles is Avogadro’s law.

What is Avogadro’s law?

Avogadro's law states that equal volumes of any gas contain the same number of molecules at the same temperature and pressure.

V ∝ n

where;

V is volume of the gasn is number of moles

Thus, the law that was used to determine the relationship between the volume and the number of moles is Avogadro’s law.

Learn more about Avogadro’s law here: https://brainly.com/question/26931664

#SPJ1

Answer: C. Avogadro’s law

Explanation:

In each of the following substances nah, h2, and h2s, hydrogen is assigned an oxidation number of +1. is this correct? explain your reasoning

Answers

No It is not correct.

Correct oxidation number of hydrogen in  NaH,H2 and H2S are:

Let x be the Oxidation state of ’H’  by oxidation state rule.

        x+1 =0 (Sodium has +1 Oxidation state )

        x=−1

        Therefore, -1 is oxidation number of Hydrogen in NaH.

The oxidation number of an element's atom in its standard state is zero. As a result, the oxidation number for H2 is zero.The hydrogen oxidation number in H2 is +1. As a result, that hydrogen atom can be reduced to lower oxidation states of hydrogen, such as 0 and -1. However, because +1 is the highest oxidation state of hydrogen, the hydrogen atom cannot be reduced any further.What is oxidation number?

In simple terms, the oxidation number is the number assigned to elements in a chemical combination. The oxidation number is the number of electrons that atoms in a molecule can share, lose, or gain when forming chemical bonds with atoms of a different element.

Learn more about oxidation number in:

https://brainly.com/question/3035498

#SPJ4

To a 25.00 mL volumetric flask, a lab technician adds a 0.225 g sample of a weak monoprotic acid, HA , and dilutes to the mark with distilled water. The technician then titrates this weak acid solution with 0.0849 M KOH . She reaches the endpoint after adding 42.35 mL of the KOH solution. Determine the number of moles of the weak acid in the solution.

Answers

The number of moles of the weak acid in the solution is 0.00359

Calculation:

1. The number of mole of KOH in the solution:

Given:

Molarity of KOH = 0.0849 M

Volume = 42.35 mL = 42.35 / 1000 = 0.04235 L

Mole of KOH = Mole = Molarity x Volume

                      = 0.0849 ×  0.04235

                      = 0.00359 mole

2. The number of mole of a weak acid, HA:  

Balanced equation:

HA + KOH → KA + H₂O

From the above equation, A mole of HA and a mole of KOH react together. Therefore,

0.00359 moles of HA will also react with 0.00359 moles of KOH.

0.00359  moles of base use = 1/1 x 0.00359 = 0.00359 moles of HA

Thus, there are 0.00359 moles of a weak acid in the solution.

Learn more about the moles of the weak acid here,

https://brainly.com/question/23087833

#SPJ4

Why do we need to clamp the rubber tube when we are transferring the flask from the boiling water to the cool water

Answers

The flask assembly will heat up in hot water, pressure will build up inside the flask and it could explode.

The fingertip is kept in place throughout the transfer to prevent the seepage of the trapped air from the flask. Inside the tank, the flask is constantly upside down. The flask can be tipped at an angle to allow the air to escape.The entire contents of the pint will erupt out if only the bottom of the container is heated.Rubber stoppers are ideal for plugging joints or holes in laboratory glassware and creating a liquid-tight seal.

What is the proper method for inserting glass tubing into a rubber stopper?

Lubricate the end of the glass tubing with a few drops of water, washing-up liquid, glycerol, or vegetable oil.Hold the glass tubing close to where it enters the hole in the rubber stopper.Ease the tubing into the hole with a gentle twisting motion.

Learn more about rubber stopper

brainly.com/question/425676

#SPJ4

What are you measuring when
you step on a scale?
A. the amount of Earth's gravity pulling you
down
B. the amount of atoms you contain
C. how high you can jump
D. your volume

Answers

Answer:

B. the amount of atoms you contain

What is the best way to maintain control of the subsection when cutting with a vertical or diagonal cutting line

Answers

Palm to palm is referred to as the best way to maintain control of the subsection when cutting with a vertical or diagonal cutting line thereby preventing the risk of injuries or inaccuracy.

What is Palm to palm technique?

This method is used during cutting or styling and involves the two palms of the hands in a position such that they are facing each other or opposite to one another and helps to reduce the different types of strain in the affected part of the body.

This method isn't a compulsory one to be done but is best suited for an individual who wants to maintain control of the subsection when cutting with a vertical or diagonal cutting line.

This is therefore the main reason why palm-to palm technique was chosen as the most appropriate choice.

Read more about Palm to palm technique here https://brainly.com/question/5029605

#SPJ1

Why is it difficult to see whether you have added the phenolphthalein to the flask solution before you have titrated it? ​

Answers

Whether in an alkali (pink) or an acid (colorless) solution, the phenolphthalein indicator has one of two distinct structures. Both structures are light-absorbing in the ultraviolet spectrum, which the human eye cannot see. So it is challenging.

What is phenolphthalein? The phthalein family of chemical compounds includes the indicator phenolphthalein (C20H14O4). The powder is a thin, crystalline yellowish-white to light orange powder. It has a pKa of 9.3, is barely soluble in water, and, when dissolved in alcohol, is used as an indicator for acid-base titration investigations.It is colorless in liquid form until pH 8.5 when it transforms from pink to dark red. Adolf von Baeyer, a German chemist, created phenolphthalein in 1871. He produced it by fusing phenol and phthalic anhydride in the presence of sulfuric acid (H2SO4) or zinc chloride. Phenolphthalein is closely linked to the triphenylmethane dyes (ZnCl2). The abbreviation "HIn" or "php" in shorthand notation is frequently used to refer to the chemical compound phenolphthalein, which has the formula C20H14O4. Its structure consists of 2 alcoholic groups, one ketone group, three hexagonal structures, and one pentagonal structure. Another compound with carbon, hydrogen, and oxygen chain structure is phenolphthalein.Phenolphthalein is frequently used as an indicator in acid-base titrations. Due to its water solubility, phenolphthalein is frequently dissolved in alcohols before use in experiments. It is a weak acid that can lose H+ ions in solutions. While the ion of phenolphthalein is purple, the phenolphthalein molecule is colorless.A common indicator used in titration experiments to show the titration's endpoint is phenolphthalein, an inert, colorless acid. Since this molecule dissociates to generate pink anions when dissolved in water, the endpoint is signaled by the production of pink color.

To learn more about phenolphthalein, refer to:

https://brainly.com/question/23732406

#SPJ9

Which describes the law of conservation of matter?
O A. Chemical reactions cannot happen.
B. Atoms cannot be created or destroyed in a reaction.
OC. Atoms are not involved in chemical reactions.
OD. Molecules cannot change into other molecules during a reaction.
SUBMIT

Answers

Answer:

answer is B

mark me brainliest

follow

An element with 11 neutrons, 11 protons, and 11 electrons would have a mass number o?

Answers

The mass number of element  is 22.

The mass number is the sum of number of electrons/proton and number of neutron .

Mass number = number of proton/electron + number of neutrons

If an element with 11 neutrons, 11 protons, and 11 electrons then mass number is calculated as,

Mass number = number of proton/electron + number of neutrons

Mass number = 11 + 11 = 22

learn about element

https://brainly.com/question/14347616

#SPJ4

The volume of a gas decreases to half of its original volume, but the gas maintains the same number of moles and temperature. According to the ideal gas law, what will most likely happen to the pressure?

It will double.
It will decrease.
It will increase slightly.
It will remain the same

Answers

A. when the volume of the gas is halved, the pressure of the gas will be doubled.

Pressure of the gas according to ideal gas law

PV = nRT

P = nRT/V

when the volume is halved

P= nRT/0.5V

P = 2nRT/V

P(new) = 2P(initial)

Thus, when the volume of the gas is halved, the pressure of the gas will be doubled.

Learn more about ideal gas law here: https://brainly.com/question/12873752

#SPJ1

Board cases involving eligibility or disciplinary issues that are resolved through a board agreed order

Answers

Board instances involving eligibility or disciplinary issues that are addressed by a board-approved order public records and accessible on the BON's web page.

BON's web page

Board Position Statements are a way to give nurses guidance on topics that are important to the Board and relate to the safety of the public, but they do not have the legal force of law. In the context of the position statement's overall intent, each position statement is intended to offer direction. Board position statements are examined every year to determine their applicability and accuracy in light of current practice, the Nursing Practice Act, and Board regulations. In January 2022, the Board conducted its most recent evaluation.

It is possible to find a concise summary of the substance of the Position Statements, although it does not include all the specifics that are included in each Position Statement.

Learn more about BON's web page here:

https://brainly.com/question/16982080

#SPJ1

If an object has a temperature of 0 kelvin, how much energy is the object emitting? what is the wavelength of light emission according to wien's law?

Answers

This law (expressed mathematically as E = σT4) states that each gadget with temperatures above absolute zero (0K or -273°C or -459°F) emits radiation at a charge proportional to the fourth energy in their absolute temperature.

Wien's displacement law states that the black body radiation curve for one-of-a-kind temperatures height at a wavelength is inversely proportional to temperature.

Wien's displacement law It states that the better the temperature, the lower the wavelength λmax for which the radiation curve reaches its most. The shift to shorter wavelengths corresponds to photons of better energies. In other phrases, λmax (height wavelength) is inversely proportional to temperature.

Wien's regulation, named after the German Physicist Wilhelm Wien, tells us that gadgets of different temperatures emit spectra that height at distinctive wavelengths. hotter objects emit radiations of shorter wavelengths and for this reason, they seem blue.

Wien's regulation tells us that gadgets of various temperatures emit spectra that top at specific wavelengths. hotter gadgets emit a maximum of their radiation at shorter wavelengths; subsequently, they will seem like bluer. Cooler gadgets emit most of their radiation at longer wavelengths; consequently, they'll appear redder.

Learn more about Wien's law here: https://brainly.com/question/13380837

#SPJ4

How does a conjugate acid differ from its conjugate base?

Answers

The conjugate acid is differ from its conjugate base as, conjugate acid is formed by strong base whereas conjugate base is formed by strong acid.

conjugate base is differ from conjugate acids by the presence of the proton. The conjugate acid is formed when proton is added to the bases whereas conjugate bases is formed when proton is released by the acids.

Example of corrugate acids are given below.

[tex]NH_{3}[/tex] → [tex]NH_{2} ^{-} +H^{+}[/tex]

In the above example  [tex]NH_{2} ^{-}[/tex] is conjugate acids.

Learn about conjugate acid

https://brainly.com/question/12883745

#SPJ4

A 25. 00 ml sample of acetic acid containing phenolphthalein indicator is titrated with 0. 1067 m naoh. The solution changes color after 30. 07 ml naoh has been added. What is the concentration of the acetic acid before titration?.

Answers

The concentration of acetic acid:

The concentration of the acetic acid before titration is 0.128 M

What is titration?

Titration is a quantitative analytical procedure that works by allowing a known analyte to gradually react with a titrant until an endpoint is reached.

Titration for weak acid and strong base:

Moles of acetic acid =  moles of NaOH

Given:

Concentration of NaOH = 0.1067 M

Volume of NaOH = 30.07 ml = 0.03007 L

Calculation:

So, by using the formula, Concentration = Moles/Volume

Moles of NaOH = concentration x volume = 0.1067 x 0.03007 = 0.0032

Therefore, the moles of acetic acid  = 0.0032 mole

Now, using the formula again for determining the concentration of acetic acid, we get,

Concentration = Moles/Volume

Concentration of acetic acid =  0.0032/0.025 = 0.128M

Learn more about titration here,

https://brainly.com/question/2728613

#SPJ4

A 5.2 molal aqueous solution of methyl alcohol, CH3OH, is supplied. What is the mole fraction of methyl alcohol in the solution?​

Answers

Answer:

0.086

Explanation:

A 5.2 molal aqueous solution of methyl alcohol indicates that 5.2 moles of methyl alcohol are present in 1 kilogram (or 1000 g) of water. Water has a molecular weight of 18 g/mol.

(100g)/18g/mol=55.56 mol

5.2 mol/(5.2mol+55.56 mol)=0.086

Use the portion of the periodic table shown below to answer the questions.

A portion of the first three columns of the periodic table is shown. Column one from top to bottom reads 11 sodium 22.990, 19 potassium 39.098, and 37 rubidium 85.468. Column two reads 12 magnesium 24.305, 20 calcium 40.078, and 38 strontium 87.62. Column three reads 21 scandium 44.956 and 39 yttrium 88.906.

Part 1: Name two elements that have the same properties as sodium (Na). (4 points)
Part 2: Determine the number of protons, electrons, and neutrons present in an atom of calcium (Ca). Explain how you determined your answer using complete sentences. (6 points)

Answers

The two elements that have the same properties as sodium are potassium  and rubidium .

What is periodic table?

The periodic table is an arrangement of the elements in order of increasing atomic number.

From the list, the two elements that have the same properties as sodium are potassium  and rubidium .

Proton has an atomic number of 20 and a mass number of 40. The number of electrons is the same as the number of protons. Given that the atomic number is the number of protons present, we have 20 electrons and 20 protons.

Number of neutrons = Mass number  - Number of protons

= 40 - 20 = 20 neutrons

Learn more about periodic table:https://brainly.com/question/11155928

#SPJ1

If the symbol x represents a central atom, y represents outer atoms, and z represents lone pairs on the central atom, the structure the central x atom is single bonded to two y atoms, which are 180 degrees apart. The x atom has two lone pairs. Could be abbreviated as xy2z2. Classify each molecule according to its shape.

Answers

XY2Z - linear

XY2Z2 - bent(120)

XY2Z3 - bent(109)

XY3Z -  trigonal pyramidal

XY3Z2 - t-shaped

XY4Z -  see-saw

XY4Z2 - square planar

XY5Z - square pyramidal

Linear shape: A linear molecule is one that has its atoms arranged in a straight line.

Bent shape: One type of bent molecular geometry features a center atom with two lone pairs of electrons and two bond pairs attached to it. Other names for it include angular and V-shaped.

Trigonal pyramidal: A trigonal pyramid is a molecular shape that resembles a tetrahedron and has one atom at the top and three at the corners of the base.

T-Shaped: When a central atom has three ligands, the structure of the molecule is said to have a T-shaped molecular geometry.

See-saw: This shape is caused by a lone pair of electrons on the central atom.

Square planar: In square planar molecular geometry, constituent atoms create the square's four corners on the same plane and surround the center atom.

To learn more about atomic structures visit: https://brainly.com/question/2153108

#SPJ4

Which normal physiologic process contributes most to the need for acid-base balance?

Answers

C. Continuous metabolic production of free hydrogen ions

The processes of creating and breaking down glucose molecules are both examples of metabolic pathways. A metabolic pathway is a chain of related chemical reactions that feed each other. The pathway takes in a single or extra beginning molecule and, through a sequence of intermediates, converts them into merchandise.

Metabolism (stated: meh-TAB-uh-Liz-um) is the chemical reactions within the body's cells that alternate meals into power. Our bodies want this strength to do the entirety from moving to wondering to growing. particular proteins in the body manipulate the chemical reactions of metabolism.

A metabolic product is a compound produced via the cells and is excreted to the extracellular medium. it can be produced in the number one metabolism, e.g. carbon dioxide, ethanol, acetate, or lactate, or an extra complicated one, e.g. a secondary metabolite or a heterologous protein secreted to the extracellular medium.

The question is incomplete. Please read below to find the missing content.

Which normal physiologic process contributes most to the need for acid-base balance

A. Continuous organ production of bicarbonate from carbonic acid

B. Continuous alveolar exchange of oxygen and carbon dioxide

C. Continuous metabolic production of free hydrogen ions

D. Continuous kidney formation of urine from blood

Learn more about metabolic production here https://brainly.com/question/3172028

#SPJ4

Silver bromide is the photosensitive material in 35 mm photographic film. When monochromatic light falls on film, the photons are recorded if
they contain sufficient energy to react with silver bromide in the film. The minimum energy needed to do this is approximately 57.9 kJ/mol. What
is the wavelength of this energy in nm?

Answers

The minimum energy needed by the photons to react with silver bromide in the film is approximately 57.9 kJ/mol. Then, the wavelength is 206 nm.

What is wavelength?

Wavelength of a wave is the distance between two consecutive crests or troughs of the wave.

To find the wavelength of the energy in nm, we can use the equation:

E = hc/λ

where E is the energy in joules, h is Planck's constant (6.626 x 10⁻³⁴ J s), c is the speed of light (2.998 x 10⁸ m/s), and λ is the wavelength in meters.

First, we need to convert the energy from kJ/mol to J/photon:

57.9 kJ/mol = 57.9 x 1000 J/mol / 6.02 x 10²³ mol^-1

= 9.626 x 10²⁰ J/photon

Now we can use the equation above to find the wavelength:

9.626 x 10²⁰ J/photon = (6.626 x 10⁻³⁴ J s)(2.998 x 10⁸ m/s) / λ

Solving for λ, we get:

λ = hc/E = (6.626 x 10⁻³⁴ J s)(2.998 x 10^8 m/s) / 9.626 x 10⁻²⁰J/photon

  = 2.06 x 10⁻⁷ m

Finally, we convert the wavelength from meters to nanometers:

λ = 2.06 x 10⁻⁷ m x (10⁻⁹ nm/m)

  = 206 nm

Therefore, the wavelength of the energy needed to react with silver bromide in 35 mm photographic film is approximately 206 nm.

Find more on photons:

https://brainly.com/question/20912241

#SPJ2

22.PTCL wants to interlink 5 cities and the links should be between every two cities, how many links will be formed?

Answers

There will be 10 links for every two cities of the given 5 towns.

What is the formula for finding the number of combinations?

The formula for the number of combinations is

[tex]\frac{n!}{r!(n-r)!}[/tex]

Where n is the number of objects and r is the number of choosing the objects.

How many pairs can be formed with the 5 cities and what are they?

Consider the given 5 cities as A, B, C, D, and E

The pairs we can form:

(A, B), (A, C), (A, D), (A, E), (B, C), (B, D), (B, E), (C, D), (C, E), and (D, E)

How many links are formed?

Since there are 10 pairs, there will be 10 links between those.

The number of combinations = [tex]\frac{n!}{r!(n-r)!}[/tex]

where n = 5 and r = 2

⇒ [tex]\frac{5!}{2!(5-2)!}[/tex]

⇒ 10

Therefore, there will be 10 links between those 5 cities.

Learn more about calculating combinations here:

https://brainly.com/question/16556229

#SPJ1

A solution is prepared by dissolving 117 grams of salt (NaCI) in 250 milliliters of water (H_{2}*O) What is the molarity of the solution?

D. 468 M NaCI

C. 8.0 M NaCl

A. 0.47 M NaCI

B. 8 * 10 ^ - 3 * MNaCl

Answers

Taking into account the definition of molarity, the molarity on the solution is 8 M.

Definition of molarity

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

[tex]Molarity=\frac{number of moles}{volume}[/tex]

Molarity is expressed in units [tex]\frac{moles}{L}[/tex].

This case

In this case, you know that:

number of moles= 117 gramsx[tex]\frac{1 mole}{58.45 grams}[/tex]=  2 moles, where 58.45[tex]\frac{g}{mole}[/tex] is the molar mass of NaCl.volume= 250 mL= 0.250 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

[tex]Molarity=\frac{2 moles}{0.250 L}[/tex]

Solving:

Molarity= 8 [tex]\frac{moles}{L}[/tex]= 8 M

Finally, the molarity on the solution is 8 M.

Learn more about molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

#SPJ1

In a mass spectrometer, the ion with the highest abundance in the mass spectrum that is assigned a relative abundance of 100% is referred to as the

Answers

In a mass spectrometer, the ion with the highest abundance in the mass spectrum that is assigned a relative abundance of 100% is referred to as the base peak.

What does a mass spectrum base peak represent?

The base peak is the greatest peak in the mass spectrum that corresponds to the most prevalent ion or the strongest peak in the spectrum. It could be the parent peak or a fragment ion peak, depending on the type of molecule. Sometimes the base peak may be the molecular ion peak.

What does a spectrophotometer's base peak mean?

The base peak, which is the peak with the highest intensity in the spectrum, is given a value of 100 percent, and the intensities of the other peaks, including the molecular ion peak, are expressed as a percentage of the base peak (height x sensitivity factor). In addition to producing positive ions, bombarding a sample with electrons can also produce negative ions.

Learn more about mass spectrometers here:-

https://brainly.com/question/15106466

#SPJ4

Sometimes it is hard to find evidence at the scene of a suspicious fire because the act of putting out a fire is destructive.

Answers

True, sometimes it is hard to find evidence at the scene of a suspicious fire because the act of putting out a fire is destructive.

Firefighters must handle the area as a medical emergency incident in addition to a fire scene. The victim should be treated as evidence and kept in tact.

Why is it difficult to find evidence of arson?

All unintentional causes of a fire-related incident must be eliminated before it can be deemed arson; this requires strong evidence that the fire was started intentionally. Arson is challenging to establish and later prosecute for this reason.

Why is fire investigation difficult?

For three key reasons, arson investigations are challenging: The arsonist can prepare the fire in advance and bring all the necessary equipment with them. There is no requirement that the arsonist be present while the act is committed. Evidence linking the arsonist to the crime is destroyed by the fire itself.

Learn more about fire investigation

brainly.com/question/2109449

#SPJ4

A 1.00 L sample of HCl(aq) is prepared and has a pH of 1.045.
What mass of HCl(g) is dissolved?

Answers

The mass of HCl dissolved to form the solution is 3.285 g.

What is the mass of HCl dissolved?

The mass of HCl is determined from the pH.

The concentration of hydrogen ions is given as:

[H⁺] = 10⁻1.045 = 0.09

1.0 moles of HCl is produced by 1.0 moles HCL

Moles of HCl = 0.09

Mass of HCl = 0.09 * 36.5

Mass of HCl = 3.285 g

In conclusion, the mass of HCl dissolved is obtained from the pH of the solution.

Learn more about pH at: https://brainly.com/question/940314
#SPJ1

Given the reaction below, which is the being oxidized?
Mg + Cl2 Right arrow. Mg2+ + 2Cl–
2CI–
CI2
Mg
Mg2

Answers

The ion that is oxidized in the above redox reaction is Mg (option A). Details about oxidation can be found below.

What is oxidation in a redox reaction?

Oxidation in a redox reaction is a reaction in which the atoms of an element lose electrons and the oxidation state of the element increases.

According to this question, the redox reaction is given as follows: Mg + Cl2 = Mg2+ + 2Cl–

As shown in the above redox reaction, Magnesium oxidation number increases from 0 to 2+, therefore, is the one being oxidized.

Learn more about oxidation at: https://brainly.com/question/9496279

#SPJ1

AnswerAAAAA

Explanation:

Equation is balanced already

How many grams of propane are
needed to react completely with 48 grams of oxygen?
How many grams of carbon dioxide will be produced? (I-8 marks)

2 C4H10 13 O₂ = 8 CO2 +10 H₂O

Answers

Answer:

1.) 13 g C₄H₁₀

2.) 41 g CO₂

Explanation:

To find the mass of propane (C₄H₁₀) and carbon dioxide (CO₂), you need to (1) convert mass O₂ to moles O₂ (via molar mass), then (2) convert moles O₂ to moles C₄H₁₀/CO₂ (via mole-to-mole ratio from equation coefficients), and then (3) convert moles C₄H₁₀/CO₂ to mass C₄H₁₀/CO₂ (via molar mass). It is important to arrange the ratios in a way that allows for the cancellation of units. The final answers should have 2 sig figs to match the sig figs of the given value.

Molar Mass (C₄H₁₀): 4(12.011 g/mol) + 10(1.008 g/mol)

Molar Mass (C₄H₁₀): 58.124 g/mol

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

Molar Mass (O₂): 2(15.998 g/mol)

Molar Mass (O₂): 31.996 g/mol

2 C₄H₁₀ + 13 O₂ ----> 8 CO₂ + 10 H₂O

 48 g O₂             1 mole             2 moles C₄H₁₀            58.124 g
---------------  x  -----------------  x  -------------------------- x  ------------------  =  
                         31.996 g              13 moles O₂               1 mole

=  13 g C₄H₁₀

 48 g O₂             1 mole               8 moles CO₂            44.007 g
---------------  x  -----------------  x  -------------------------- x  ------------------  =  
                         31.996 g              13 moles O₂               1 mole

=  41 g CO₂

If the rate law for a reaction A → P is rate = 3.37x10-3 M^-1 min-1 [A]^2 and the initial concentration of a is 0.122 M, calculate the half-life of A.

Answers

Rate = 3.37x10-3 M^-1 min-1 [A]^2 and the initial concentration of a is 0.122M.

A rate law indicates the rate of a chemical response depends on reactant concentration. For a response inclusive of the price regulation commonly has the form rate = ok[A]ⁿ, in which okay is a proportionality constant known as the fee regular and n is the order.

The charge of a chemical response is, perhaps, its maximum crucial asset because it dictates whether or not a reaction can arise all throughout an entire life. knowing the charge regulation, an expression concerning the price to the concentrations of reactants can assist a chemist to modify the response conditions to get an extra suitable rate.

half-life is the time taken for the radioactivity of a substance to fall to 1/2 its authentic cost whereas implies existence is the common life of all the nuclei of a particular risky atomic species.

Learn more about rate law here:-https://brainly.com/question/7694417

#SPJ4

A gas diffuses 1/8 times faster than hydrogen gas. what is the molar mass of the gas?
129.02 g/mol
136.44 g/mol
140.81 g/mol
145.45 g/mol

Answers

Answer:

129.02 g/mol.

Explanation:

We apply grahams law of diffusion:

1/8 = √2.016/√m     where m = molar mass

√m  = 8√2.016

m =   (8√2.016) = 129.02 g/mol.

Other Questions
Solve each system of equations below by graphing y = -1/2x +4x + 2y = 8 gamma rays cannot be ___ or ____, but can cause_____. And though my head felt heavy,I played on till duskMissing files and pop-ups and groundersAnd calling out in desperation things likeYours and take it, but doing all right,Tugging at my cap in just the right way,Crouching low, my feet set.Hum baby sweetly on my lips.How I Learned English,Gregory DjanikanWrite four to six sentences describing how the poem's events take him from being an outsider to feeling accepted in his new community. Which of the following best describes what a thesis for a historical essay should be? A. a well-researched fact B. a summary of an event C. an interpretive claim D. an uncontestable statement Virginia currently has two nuclear power plants located in Mineral, VA and Surry, VA. Imagine you live in Wytheville, VA, which is in the western arm of the state. If your local government decided to build a nuclear power plant, consider how the people in your community would feel about this decision.In complete sentences, discuss the following: At least one benefit (positive outcome) of nuclear power discussed in this module (2 points)At least one drawback (negative outcome) of nuclear power discussed in this module (2 points)Based on this information, how would you feel about a nuclear power plant being built in your area? Explain why you feel this way. (2 points) HELP PLEASE A chain of home health care firms in Louisiana needs to locate a central office from which to conduct internal audits and other periodic reviews of its facilities. These facilities are scattered throughout the state, as detailed in the following table. Each site, except for Houma, will be visited three times each year by a team of workers, who will drive from the central office to the site. Houma will be visited five times a year.(Map Coordinates)CityXYCovington9.03.5Donaldsonville7.32.8Houma7.61.7Monroe4.88.4Natchitotches2.66.5New Iberia5.32.1Opelousas4.83.3Ruston3.88.2a.) For the location of the new central office, the coordinates should be near: x = ___b.) y should = ____?c.) The center-of-gravity approach minimizes the distance traveled assuming straight lines. This approach ignores geographical features that would tend to violate the straight line constraint such as (select all that apply):A.) Rivers B.) Trips C.) Non-Straight Roads D.) Bridges Which of the following are propositions? Give the truth value of each proposition. (a) What time is dinner? (b) It is not the case that is not a rational number. (c) x / 2 is a rational number. (d) 2x + 3y is a real number. (e) Either is rational and 17 is a prime, or 7 < 13 and 81 is a perfect square. (f) Either 2 is rational and is irrational, or 2 is rational. (g) Either 5 is rational and 4.9 is rational, or there are exactly four primes less than 10. (h) 3.7 is rational, and either 3 < 10 or 3 > 15. (i) It is not the case that 39 is prime, or that 64 is a power of 2. (j) There are more than three false statements in this book, and this statement is one of them. 13. Consider the system of equations.y = 6.9x + 4.3y = 4.7x + 8What is the solution of the system?Round your answer to the nearesthundredth, if necessary. (Lesson 6-1)A. 1.06B. 1.68C. 2.14D. 5.59 Jimmy asked his friends in his lunch periodwhat their favorite pizza toppings were. Thegraph shows these results.3025201510Favorite Pizza ToppingsCheese Mushrooms Sausage Pepperoniand olivesWhat is the approximate difference in thepercentage of people that liked pepperoni ontheir pizza and the percentage of people thatonly liked cheese pizza?un qu papel juega la tica en los avances cientficos? Describe what the world was like when Araminta Harriet Ross was born.please help me with this one. Harry the hippo collected change from the bottom of the pond but he only kept the quarters and nickels if he collected 100 coins and has 17.40 how many of each coin does he have "I am sure," said the king, "that this man is the most faithful and virtuous of men. If he wished to take my life, why did he cure me? Cease to speak against him. I see what it is, you are jealous of him; but do not think that I can be turned against him. I remember well what a vizir said to King Sindbad, his master, to prevent him from putting the prince, his son, to death."What the Greek king said excited the vizir's curiosity, and he said to him, "Sire, I beg your majesty to have the condescension to tell me what the vizir said to King Sindbad.""This vizir," he replied, "told King Sindbad that one ought not believe everything that a mother-in-law says, and told him this story."The Story of the Greek King and the Physician Douban,Andrew LangWhat is unique about this story? Which plot element is missing from the story? Which factor is the most important factor of production give reasons to prove your answer? If chemicals are transferred to secondary containers, the secondary containers must be labeled with the chemical's. True or False? Doris Schutt earns a weekly gross salary of $1,500.00. When she receives herraise from her job at Precision Doors and Windows next year, she will be earningan annual salary of $83,500.00. How much more money will she make next yearthan this year?Your answer What is the topic of the passage? what does the passage say about this topic? what theme does the passage express? In the diagram below, m is the perpendicular bisector of BC.Is ABK ACK? Justify.so far i have this, angle APB is a right angle- perpendicular bisectors form right angles. angle APC is a right angle- perpendicular bisectors form right angles. angle APB is congruent to angle APC- all right angles are congruent. But I don't know if this is rightliterally the last question on my test. Please please please help Which of these is an illustration of the concept of out-group homogeneity?a. Members of some minority groups are perceived as being very similar to the dominant group in society.b. Members of a set of minority groups, such as Laotians, Chinese, Japanese, and Indonesians, are perceived as being similar enough to share a general category (Asian).c. Members of all groups considered minority groups in a society are perceived as having the same biological backgrounds.d. Members of some ethnic groups, such as Italian, German, and French, are considered similar enough to the dominant group so they are no longer considered minority groups. Boeing is rolling out a new marketing campaign. The new campaign will start in time for the airlines annual planning process, in the second half of the year. Boeings marketing plans are