Which equation agrees with the ideal gas law?
StartFraction V subscript 1 over T subscript 1 EndFraction equals StartFraction V subscript 2 over T subscript 2 EndFraction.
V subscript 1 n subscript 1 equals V subscript 2 n subscript 2.
P subscript 1 n subscript 1 equals P subscript 2 n subscript 2.
StartFraction P subscript 1 over P subscript 2 EndFraction equals StartFraction T subscript 2 over T subscript 1.

Answers

Answer 1

The equation for ideal gas law is written as PV = nRT.

What is Ideal gas law?

Ideal gas law states that, the volume of a given amount of gas is directly proportional to the number on moles of gas, directly proportional to the temperature and inversely proportional to the pressure.

PV = nRT

where;

P is pressure of the gasV is volume of the gasn is number of molesR is ideal gas constantT is temperature

Thus, the equation for ideal gas law is written as PV = nRT.

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Related Questions

The main acid in the stomach is hydrochloric acid (HCl). Which chemical equations show a reaction that occurs when someone takes an antacid

Answers

Answer:

Mg(OH)2(s) + 2HCl(aq) => MgCl2(aq) + 2HCl(l)

Explanation:

The reaction that occurs in the stomach when one takes an antacid {Mg(OH)2} is termed as Neutralization reaction as it reacts with hydrochloric acid to form magnesium hydroxide and water.

The equation of reaction:

Mg(OH)2(s) + 2HCl(aq) => MgCl2(aq) + 2HCl(l)

Draw the major 1,2- and 1,4-addition products that form as a result of the following reaction between one equivalent each of 2,4-hexadiene and HBr.

Answers

The major 1,2- and 1,4-addition products are 4-Bromo-2-hexene and 2-Bromo-2-hexene.

What is Markovnikov Rule ?

Markovnikov rule explains that in addition reaction of alkene react with a hydrogen halide. The hydrogen atom is attached to the carbon atom that is already bonded to the greatest number of hydrogen.

What is Addition Reaction ?

An addition reaction is an organic reaction occur when two or more molecules combine to form a larger molecule without the loss of any atoms present in reactant.

Thus from the above conclusion we can say that The major 1,2- and 1,4-addition products are 4-Bromo-2-hexene and 2-Bromo-2-hexene.

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The protein--iron compound that has the bonding capabilities for the transport of oxygen and carbon dioxide is:

Answers

It is hemoglobin.

What is hemoglobin and its composition?

In the red blood cells (erythrocytes) of vertebrates, hemoglobin, an iron-containing protein, transports oxygen from the lungs to the body's tissues and organs and returns carbon dioxide to the lungs. In a complete blood cell (CBC) test, the amount of hemoglobin in the blood is often measured.

A globin group is surrounded by four heme groups, which together form a tetrahedral shape in each hemoglobin molecule. Heme is an organic complex known as a porphyrin that has an iron atom linked to it. Heme makes up only 4% of the weight of the molecule. As the blood circulates between the lungs and the tissues, the iron atom is what holds oxygen in place. Each hemoglobin molecule contains four iron atoms, and as a result, it has the capacity to bind four oxygen molecules. Two linked pairs of polypeptide chains make up globin.

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What is rusting? Write its chemical equations.​

Answers

[tex] \huge \quad\quad \underline{ \tt{{Answer}}}[/tex]

Rusting of iron is the most familiar example of corrosion. It is a process in which an iron reacts with atmospheric oxygen and moisture to form a reddish brown substance iron oxide, which is commonly known as rust.

[tex] \: \: \: \: \: \: \: \: \: \: \: \: [/tex]

[tex]\blue{ \star}:[/tex][tex] \sf4fe+ 3O_2+ XH_2O→ 2Fe_2O_3.XH_2O[/tex]

Answer:

Rust is an iron oxide, formed by iron and oxygen reacting in the catalytic presence of water or air moisture. Rusting is an oxidation reaction. This means it involves oxygen reacting with something (in this case, iron in the presence of moisture).

The chemical formula for rusting:

4Fe + 3O2 + 6H2O → 4Fe (OH)3

Hope this helps!

- profparis


What are the correct half reactions for the following reaction:
Zn + 2 HCI -> H₂ +zncl2

Answers

Answer:

Zn(s) + 2H+(aq) => Zn²+(aq) + H2 (g)

Explanation:

The equation Zn + 2 HCI -> H₂ +zncl2 on reduction and oxidation, it results as below;

2H+ + 2e- => H2 ; reductionZn => Zn²+ + 2e- ; oxidation

The equations above are half cell.

On combination of the above half cell reaction equations gives;

Zn(s) + 2H+(aq) => Zn²+(aq) + H2 (g).

Therefore, the half reaction equation for Zn + 2 HCI -> H₂ +zncl2 is given by;

Zn(s) + 2H+(aq) => Zn²+(aq) + H2 (g).

please help me with this question

Answers

From the calculation, the concentration in parts per billion is 6 ppb.

What is ppb?

The term ppb refers to the concentration of a substance in parts per billion. We obtain the ppb using the formula;

Mass of solute/ Mass of solution * 10^9

Now, 1L = 1000cm^3 = 1000 g

The concertation in ppb = 6 * 10^-6 g/1000 g * 10^9

= 6 ppb

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Draw an atomic structure of Sodium (Na). What are sub-atomic particles?​

Answers

Sodium represents by the (Na).

The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. How many grams of sucrose are needed to make 655 mL of a 40.0% (w/v) sucrose solution

Answers

The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. 262 grams of sucrose are needed to make 655 mL of a 40.0% (w/v) sucrose solution

Define Solute

A solute is a material that dissolves in a solution. The amount of solvent present in fluid solutions is greater than the amount of solute. The two most common examples of solutions in daily life are salt and water. Salt is the solute because it dissolves in water.

forms of ratios for product concentration or yield:-w/v:- Weight by volume or weight per volume are the terms used. Any solid compound's concentration in a liquid can be calculated using it. It is measurable in gm/ml.Weight by weight ratio is referred to as w/w.It is employed to determine the final yield of the compound obtained from the starting compound. as in —mg/—gm.

       It provides the real yield of the substance or item.

Volume/volume. It is used to specify a liquid's composition or percent in a liquid compound.

using w/v we can calculate the weight of sucrose:-

40.0% means 40 g sucrose/ 100 g solution

40.0g sucrose x (655/100)=grams of sucrose

262  grams of sucrose are needed to make 655 mL of a 40.0% (w/v) sucrose solution.

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Question 21 of 50
2 points
we would use the elements listed on the bottom of the reactivity list for all of the following except
_______.
a. pans for cooking and baking

b. jewelry

c. fireworks

d. water pipes in the house

Answers

The elements listed on the bottom of the reactivity list for all of the following except fireworks and is denoted as option C.

What is Reactivity?

This is referred to the extent in which an element is able to take part in a chemical reaction.

The elements founds at the bottom of the reactivity list include gold which can't be used for making fireworks.

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An oil separates crude oil into its components by distillation. some compoents are altered:______

Answers

An oil separates crude oil into its components by distillation. some components are altered by cracking and Reforming.

The  crude oil  contains many petroleum products like petrol , diesel , Mobil oil coaltar and many more with impurities So, now it is very important to separated it into components to use all product individually in pure form.

The separation process are based on fraction distillation because all petroleum products have different density and boiling points. All products are separated at different temperature.

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H. If you had 64 amu of ch4, how many molecules would this be? i. If you had 64 g of ch4, how many moles would this be?

Answers

The number of molecules and number of moles of [tex]CH_{4}[/tex] is 4 moles and 24.088×[tex]10^{23}[/tex] molecules.

Calculation,

Atomic mass of carbon is 12 u and H is 1 u

So, molar mass of [tex]CH_{4}[/tex] = 12 + 1×4 = 16 u = 16 g/mole

Number of moles = given mass / molar mass = 64 g/ 16 g/mol = 4 moles

1 moles of substance contains 6 .022 ×[tex]10^{23}[/tex] molecules.

So, number of molecules in 3 moles of methane = 4×6.022 ×[tex]10^{23}[/tex]  

number of molecules in 3 moles of methane  = 24.088×[tex]10^{23}[/tex] molecules.

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A generic element, Q, has two isotopes, 195Q and 190Q, and an average atomic mass of 191.86 amu. The natural abundances of the two isotopes are 38% 195Q and 62% 190Q. The isotopic mass of 195Q is 194.96 amu. What is the isotopic mass of 190Q

Answers

A generic element, Q, has two isotopes, 195Q and 190Q, and an average atomic mass of 191.86 amu. The natural abundances of the two isotopes are 38% 195Q and 62% 190Q. The isotopic mass of 195Q is 194.96 amu.  the isotopic mass of 190Q is 186.80.

What do you mean by Isotopes?

Isotopes are two or more atom types that share the same atomic number (number of protons in their nuclei), location in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of having a different number of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics.

191.86 =(62% x 194.96 + 38% x  X )

where, X is the mass of other Isotope.

X     = (191.86  - 120.8752)/0 .38

       = 186.80

Parent and Daughter Isotopes

The initial radioisotope and the isotope that results from radioactive decay may not be the same. The atoms created by the reaction are known as daughter isotopes, whereas the original isotope is known as the parent isotope. It's possible to get different kinds of daughter isotopes.

As an illustration, the uranium atom is the parent isotope and the thorium atom is the daughter isotope when U-238 decays into Th-234.

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A welding torch requires 4122.8l of ethylene gas at 0.64 atm what will be the pressure of the gas if ethylene is supplied by a 51.6 l tank

Answers

The pressure of the gas if ethylene is supplied by a 51.6 l tank is 51.1355atm

The final pressure of the gas can be calculated by using the formula given by Boyle's law,

      P1V1 = P2V2

What is Boyle's law?

    Boyle's law relates the compression and expansion of gas at a constant temperature. It states that, At constant temperature the pressure exerted by a gas is inversely proportional to the volume of the given mass of gas.

      P1V1 = P2V2

where,

P1 is the initial pressure

V1 is the initial volume

P2 is the final pressure and

V2 is the final volume.

Given data:

Initial volume V1= 4122.8L

Initial pressure P1= 0.64atm

Final volume V2= 51.6L

Final pressure P2= ?

   0.64*4122.8= P2*51.6

   P2= 2638.592/51.6

   P2= 51.1355atm

Hence the final pressure of the gas is 51.1355atm

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Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its individual gases?.

Answers

Dalton's law of partial pressures states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its individual gases.

What is partial pressure?

Partial pressure is defined as the pressure exerted by individual gas constituents that makes up a mixture of gases.

According to Dalton's law of partial pressures which states that the total pressure by a mixture of gases is equal to the sum of the partial pressures of each of the constituent gases.

This can be represented mathematically by the following:

P = P1 + P2

Where P = total pressure

P1 = partial pressure of gas 1

P2 = partial pressure of gas 2.

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In a mining community, groups of dead fish appear in a local river every few weeks. These fish kills coincide with incidents of mining waste dumped into the river. Which of the following components is an abiotic factor causing these fish kills?

Human activities
Biodiversity in the river
Water pollution
Overfishing

Answers

In a mining community, water pollution kills the fish in local river.

How does mining affect the rivers?

Large amounts of water are frequently used in mining, which has the potential to contaminate local groundwater, rivers, streams, and other water sources. A community's ability to grow its own food may be hampered by mining since it consumes grazing or agricultural land and pollutes the soil and the environment.

Metals that leach from the rock also contaminate nearby water sources when they do so. chemical processing pollution: When minerals are extracted from their ores using cyanide or sulfuric acid and water, the runoff pollutes the rivers in the area.

Through erosion and sedimentation, dewatering of wetlands, diverting and channelizing streams, and poisoning surface water and aquifers with harmful chemicals, surface mining can have an impact on fish and aquatic resources.

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Answer:

a

Explanation:

How does the energy of an electorn change when the electron moves closer to the nucleus?

Answers

Answer:

when an electron move closer to the nucleus the magnitude of energy of the nucleus increases

Please show all work:
If 40.0 grams of magnesium is reacted with an excess of nitric acid, HNO 3 , how many
grams of hydrogen gas will be produced?

Answers

3.3 g of hydrogen gas will be produced.

What is Stoichiometry ?

Stoichiometry helps to measure quantitative relationships between the amounts of products and reactants that are given in a reaction.

What is Balanced Chemical Equation ?

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

Now we have to write the balanced equation

Mg + 2HNO₃  → Mg(NO₃)₂ + H₂

According to Stoichiometry

[tex]40.9\ \text{g Mg} \times \frac{1\ \text{mol Mg}}{24.31\ \text{g Mg}} \times \frac{1\ \text{mol}\ H_2}{1\ \text{mol Mg}} \times \frac{2.02\ g\ H_2}{1\ \text{mol}\ H_2}[/tex]

= 3.3 g H₂

Thus from the above conclusion we can say that 3.3 g of hydrogen gas will be produced.

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The combining power of an element is called ?
A. coefficient
B.subscript
C.periodicity
D.valence number

Answers

Answer:

D

Explanation:

Valency is the combining power of an element

What component(s) of msa make(s) this media selective? choose all correct answers: a. phenol red b. agar c. mannitol d. sodium chloride

Answers

The component(s) of msa make(s) this media selective for sodium chloride.

MSA is a medium  which has both differential as well as selective properties. The distinguishing feature is the high salt content (7.5%). On just this high salt concentration, Staphylococcus species, which frequently inhabit human skin, can develop.

Streptococcus species, however, have their growth inhibited by the high salt content of the agar. Mannitol, a sugar, would be the MSA's unique component.

Resulting in high salt concentration, the sodium chloride in MSA ensures that only Staphylococci species survive. All more gram-positive bacteria are thereafter destroyed.

Therefore, the correct answer will be option (d).

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At the stoichiometric (equivalence) point in a titration of benzoic acid with naoh(aq) shown by equation 3, the ph is:_______

Answers

Benzoic acid is one of the weakest acid for titration. The pH of the salt solution generated is the pH greater than 7( >7 ) at the equivalence point in any titration.

The benzoate anion, combines with water to create OH- and undissociated benzoic acid. This reaction is stronger than OH-. As a result of the hydroxide ions generated by this reaction, the final solution has a pH greater than 7. Hydrolysis is the term for an ion's reaction with water, such as the benzoate ion.

What is titration?A titration is a method for figuring out the concentration of an unknown solution by using a solution with known concentration.Until the reaction is finished, the titrant (the known solution) is typically added from a buret to a known volume of the analyte (the unknown solution).The concentration of the unknown can be determined by knowing the amount of titrant that was added. An indicator is frequently used to indicate the reaction's endpoint or end of the reaction.

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Which solution could be used to precipitate the calcium ion form a water sample?

Answers

Calcium carbonate ([tex]CaCO_{3}[/tex]), an insoluble precipitate that could be removed from water by filtration, is created when the calcium ion in hard water bonds with the carbonate ion.

Precipitates may be ionic solids that are insoluble and result from reactions between certain cations as well as anions in water. A precipitate's formation could be influenced by a variety of circumstances.

When calcium atoms gain or lose electrons, they change their charge but also reactivity, forming calcium ions.

Therefore, Calcium carbonate ([tex]CaCO_{3}[/tex]), could be used to precipitate the calcium ion form a water sample

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HELP PLEASE!!!!!


2. To test for the presence of substance X, a lab assistant,
Alex, treats a sample of the material with hydrochloric acid.
Bubbles of carbon dioxide gas are observed and collected
during the test reaction. Write a balanced chemical equation
for the reaction.

3. Another lab assistant, Jess, disagrees with Alex, and treats
a sample of substance X with sodium hydroxide. One of the
products of this reaction is a compound called milk of lime
(found to be only slightly soluble in water). Write a balanced
chemical equation and identify the type of reaction taking
place.

4. Which lab assistant is performing a valid test for substance
X? Explain your answer, including a prediction of what would
be observed during a positive test. HINT: Research what is the
valid test for substance X. At this point you should know the
identity of substance X (you found it in Question #1).
62%

Answers

(2.) A lab assistant Alex test for the presence of X, the balanced chemical equation is CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O. (3.) Another lab assistant perform the test, the balanced chemical equation is CaCO₃ + 2NaOH → Ca(OH)₂ + Na₂CO₃. (4.) The Substance X is Calcium carbonate.

What is Balanced Chemical Equation ?

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

(2.) To test for the presence of substance X, a lab assistant, Alex, treats a sample of the material with hydrochloric acid. Bubbles of carbon dioxide gas are observed and collected during the test reaction.

The balanced chemical equation is

CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O

(3.) Another lab assistant, Jess, disagrees with Alex, and treats a sample of substance X with sodium hydroxide. One of the products of this reaction is a compound called milk of lime (found to be only slightly soluble in water).

The balanced chemical equation is

CaCO₃ + 2NaOH Ca(OH)₂ + Na₂CO₃

The type of reaction is Double displacement reaction

(4.) The lab assistant Alex perform the valid test for substance X because it gives effervescence of bubbles. The substance X is calcium carbonate. When calcium carbonate react with dilute HCl then carbon dioxide gas bubbles is present in it.

Thus from the above conclusion we can say that  (2.) A lab assistant Alex test for the presence of X, the balanced chemical equation is CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O. (3.) Another lab assistant perform the test, the balanced chemical equation is CaCO₃ + 2NaOH → Ca(OH)₂ + Na₂CO₃. (4.) The Substance X is Calcium carbonate.

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Can someone fill this out pleaseee for me

Answers

Filling out the table below following the outlined order:

Calcium - symbol = Ca; Group =2; Period = 4; Ar = 134; Am =40.078u; Ph = solid; Density = 1.55; Bp = 1757K; Mp = 1115K.Vanadium - symbol = V; Group =5; Period = 4; Ar = 197; Am =50.9415u; Ph = solid; Density = 6.11; Bp = 3680K; Mp = 2183K.Manganese - symbol = Mn; Group =7; Period = 4; Ar = 127; Am = 54.938044u; Ph = solid; Density = 7.21; Bp = 2334K; Mp = 1519K.Cobalt: - symbol = Co; Group =9; Period = 4; Ar = 125; Am =58.933195 u; Ph = solid; Density = 8.90; Bp = 3200K; Mp = 1768K.Zinc: - symbol = Zn; Group = 12; Period = 4; Ar = 134; Am =65.38 u; Ph = solid; Density = 7.14; Bp = 1180K; Mp = 692.68K.Arsenic: - symbol = As; Group = 15; Period = 4; Ar = 197; Am = 74.9216 u; Ph = solid; Density = 5.75; Bp = 889K; Mp = 889K.Bromine: - symbol = Br; Group =17; Period = 4; Ar = 120; Am = 79.904 u; Ph = Liquid; Density = 3.1028; Bp = 332K; Mp = 265K.

Meaning of Element

An element can be defined as a substance that can not be broken down into simpler substances.

An element serves as a building blocks for compounds and mixtures.

In conclusion, each element and its property as requested in the table are given above.

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The combustion reaction of propane is described by the reaction.
C3H8 +502 + 4H₂O + 3C0₂.
How many moles of O₂ are required to generate 3 moles of CO₂?

Answers

Answer:

[tex]\huge\boxed{\sf 5\ moles\ of\ oxygen}[/tex]

Explanation:

Chemical Reaction:

[tex]C_3H_8+5O_2 \longrightarrow 4H_2O+3CO_2[/tex]

From the reaction, we can say that,

1 mole of propane and 5 moles of oxygen produce 4 moles of water and 3 moles of carbon dioxide.

So, to generate 3 mole of carbon dioxide, 5 moles of oxygen are required. (as shown in the chemical reaction!)

[tex]\rule[225]{225}{2}[/tex]

(a) List any four properties of colloidal and mention any two properties in which colloids differ from suspension. (b) State what is Tyndall effect? Which of the following solution will show Tyndall effect? Starch solution, sodium chloride solution, tincture iodine, air, milk​

Answers

Explanation:

(1) they are heterogenous mixture

(2) the size of particles of colloids is too small to be seen by bare eyes.

(3) they scatter light passing through them making it's path visible.

Which of the following can easily form an ionic bond with a cation?
Sr
Ne
NH4+
PO43–

Answers

PO43- can form an ionic bond with a cation.

The chemical species which can easily form an ionic bond with a cation will be.

The definition of an ionic bond is a chemical bond that is formed between two ions that have opposite charges.

An Ionic bond is formed when one atom gives up one or more electrons to another atom.

These bonds can easily form between a pair of atoms or between molecules. This kind of bonding is most widely seen in bonds present in salts.

Compared to other options given,  is the best option as the total number of 32 valence electrons, is the highest among the given choices. Its tendency to form ionic bonds with the other cation is much higher as compared to others.

P has 5 electrons which combine with 4 O atoms which have 6 lone pairs and a -3 charge on it, which means it is accepting 3 electrons so it will be (+3), so total valence electrons will be 5 + 6 (4) + 3 = 32.

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7. A spontaneous reaction occurs when the sign of free energy IS
O A. positive.
O B. zero,
• C. negative.
O D. neutral.

Answers

Answer:

positive

Explanation:

PLEASE I NEED HELP ASAP!!!!

1.)Alex reacts 40.0 grams of substance X with 850 mL of 1.0 mol/L solution of hydrochloric acid. What is the maximum mass of carbon dioxide gas that could be obtained from this reaction?


2.)Jess reacts 25.0 grams of substance X with 40.0 mL of 2.0 mol/L of sodium hydroxide solution. The reaction yielded 2.5 grams of calcium hydroxide. Calculate the theoretical yield of calcium hydroxide and %Yield for the reaction.

Answers

The percent yield of the calcium hydroxide is 84.5%.

What is stoichiometry?

Stoichiometry enables us to obtain the mass of a substance form the equation of the reaction.

The equation of the reaction is;

CaCO3 + 2HCl -----> CaCl2 + CO2 + H2O

Number of moles of X = 40.0 grams/100 g/mol = 0.4 moles

Number of moles of HCl = 850/1000 * 1 M = 0.85 moles

If 1 mole of CaCO3 reacts with 2 moles of HCl

0.4 moles of  CaCO3 reacts with  0.4 moles  * 2 moles/1 mole

= 0.8 moles of HCl

Hence X is the limiting reactant.

The reaction is 1:1 then the amount of CO2  produced is 0.4 moles

Mass of CO2 = 0.4 CO2 * 44 g/mol = 17.6 g

2) The reaction equation is; 2NaOH + CaCO3 --->  Ca(OH)2 + Na2CO3

Number of moles of X = 25.0 grams/100 g/mol =  0.25 moles

Number of moles of NaOH= 40/1000 L * 2 M = 0.08 moles

If 1 mole of X reacts with 2 moles of NaOH

0.25 moles  reacts with   0.25 moles   * 2 moles /1 mole

= 0.5 moles

NaOH is the limiting reactant

2 moles of NaOH produces 1 mole of CO2

0.08 moles of NaOH produces 0.08 moles * 1 mole/2 moles

= 0.04 moles of CO2

Theoretical yield of CO2 =  0.04 moles of CO2 * 74 g/mol = 2.96  g

Percent yield = 2.5 g/ 2.96  g * 100

= 84.5%

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What is the purpose of a signal phrase?

6.01 formation of the solar system

Answers

Answer: The purpose is to analyze the speed of planets around a central star.

Explanation: using variables


Describe the scale used to measure the basicity of a substance. Demonstrate how you could differentiate a weak base from a strong one. (10
points)

Answers

Answer:

The pH scale is used to measure the acidity or basicity of a substance.

Explanation:

pH stands for potential hydrogen. It ranges from 0 to 14, 7 being neutral. The pH of water is 7 i.e. it is neither acidic nor basic. 0 to 7 shows acidic behavior while 7 to 14 shows basic behavior.

Experiment:

Dip the pH paper in the liquid and wait for ten seconds. The pH strip starts to discolor.

For a strong acid the strip will turn red.

For a weak acid the strip will become pale red.

To find the correct pH value we can compare it with the indicator scale present on the pH scale box.

The scale used to measure the basicity of a substance is called the pH scale.

What is the pH scale?

The pH scale is a logarithmic scale that ranges from 0 to 14 and is used to determine the acidity or basicity of a solution. A pH value of 7 is considered neutral, values below 7 are acidic, and values above 7 are basic.

To differentiate a weak base from a strong one, you can perform the following experiments:

pH Measurement: Measure the pH of the solution containing the base using a pH meter or pH indicator paper. A strong base will have a higher pH value, typically around 12-14, indicating a highly basic solution. A weak base will have a lower pH value, closer to 7, indicating a less basic or slightly basic solution.

Conductivity Test: Dissolve a small amount of the base in water and measure its electrical conductivity using a conductivity meter. Strong bases are good electrolytes and will conduct electricity well, resulting in a high conductivity. Weak bases, on the other hand, are poor electrolytes and will exhibit lower conductivity.

Reaction with Acids: Add a few drops of a strong acid, such as hydrochloric acid (HCl), to a solution containing the base. Strong bases will rapidly and completely neutralize the acid, resulting in a significant increase in pH. Weak bases, however, will only partially neutralize the acid, leading to a smaller increase in pH.

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A periodic signal is the summation of sinusoids of 5000 Hz, 2300 Hz and 3400 Hz Determine the signal's Nyquist frequency and an appropriate sampling frequency a. The signal's Nyquist frequency is ___ HZ 3 Pros and 3 Cons on why should students have to have C grades or better to participate in sports and clubs? Solve Dynamic Programming Problem and find its optimal solution. Given a list of numbers, return a subset of non-consecutive numbers in the form of a list that would have the maximum sum. Example 1: Input: (7,2,5,8,6] Output: [7,5,6] (This will have sum of 18) Example 2: Input: (-1,-1, 0] Output: [O] (This is the maximum possible sum for this array) Example 3: Input: [-1,-1,-10,-34] Output: (-1] (This is the maximum possible sum) a. Implement the solution of this problem using dynamic Programming. Name your function max_independent_set(nums). Name your file MaxSet.py b. What is the time complexity of your implementation? TRUE/FALSE.It is possible to establish a corporation by a simple verbal agreement. Divide 6 sqrt5cis (11pi/6) by 3 sqrt6cis (pi/2) Please helpppI will give brainliestMake a sonnet poem about summertime or graduation. What volume of air is present in human lungs if 0. 19 mol are present at 312 K and 1. 3 atm? After proper incubation, you obtain your Mannitol Salt agar (MSA) plate and your MacConkey (MAC) agar plate from the 37C incubator. You observed the following results for: Culture #1 (The top set of images are photographs of your results for MSA and MAC. The bottom set of images are illustrations that reflect the results you should have observed in the photographs.) MSA MAC 2 MSA MAC Please record what you observe on the agar plates in the text box below. what is the percent ionization of 0.40 m butyric acid (hc4h7o2)? (the ka value for butyric acid is 1.48 105.) explain how hybrid breakdown maintains seperate species even if fertilization occurs Class position at birth influences one's__________ education, social life, and work. which are the opportunities and obstacles one will encounter in a. social mobility b. life chances c. social categories d. ascribed status Use a protractor to measure the angles shown for each given write whether the angleis acute right obtuse or straight An Enterobacteriaceae grows as a clear colony on MacConkey but a salmon-colored colony with a black center on Hektoen enteric agar. Which of the following TSI reactions would match these morphologies?A). Alk/A H2SB). A/A H2SC). Alk/A no H2SD). A/A no H2S A man with insulin-dependent diabetes is brought to the emergency room in a near-comatose state. While vacationing in an isolated place, he lost his insulin medication and has not taken any insulin for two days.Predict the levels of the each metabolite in his blood before treatment in the emergency room, relative to levels maintained during adequate insulin treatment. many organizations require a more formal type of desk checking called _____. A scientist notices that cells being grown in culture have ceased to divide. Further investigation demonstrates the cells have abnormally segregated chromosomes. Which checkpoint are these cells likely arrested at? use the derivative f(x)=(x2)(x 1)(x 4) to determine the local maxima and minima of f and the intervals of increase and decrease. sketch a possible graph of f (f is not unique). an investment project has multiple irrs. what must be true about this project? assume that a country experiences a reduction in productivity that shifts the labor demand curve downward and to the left. if the real wage were rigid, this would lead to: Explain why polymers are structurally much more complex than metals or ceramics.