Gas Stoichiometry Ideal Gas Law

The parameter R in the ideal gas equation stands for:

• ideal gas variable

• ideal gas constant

• ideal gas correction

• ideal gas value

A hypothetical sample of gas whose pressure-volume-temperature behavior can be predicted by the ideal gas equation.

Answer in UPPERCASE.

Tags

NGSS.HS-PS3-2

One of the following is not a value for R:

• 8.314 J/K·mol

• 62.36 L·mmHg/K·mol

• 5.34 L·kPa/K·mol

• 0.08206 L·atm/K·mol

What is the volume, in liters, of 8.91 mol of

a gas at a pressure of 0.747 atm at 192 K?

Answer in 3 SF and correct units of measurement.

What is the molar volume of an ideal gas at STP?

Express the value in 4 SF with correct units of measurement.

How many moles of helium are in a gas

sample that has a volume of 500.0 mL at a

pressure of 3.00 atm and a temperature of

298 K?

• 6.13 moles

• 0.613 moles

• 0.0613 moles

• 61.3 moles

A. A balanced chemical equation is necessary in solving stoichiometry problems involving gasses.

B. The centigrade temperature scale is used in solving problems involving gasses.

• Both statements are correct

• Statement A is incorrect

• Statement B is correct

• Neither of the two statements is correct

• None of the above

Tags

NGSS.HS-PS1-5

One of the following is not needed to perform gas stoichiometry problems:

• a balanced equation

• the amount of the starting material

• conditions of standard temperature and pressure

• the amount of product formed

Calculate the volume of 22.5 moles chlorine gas, Cl₂, at STP.

Use 273 K for temperature.

Express your answer in 3 SF and correct unit of measurement.

How many liters of oxygen at STP are required to form 2.5 moles of H₂O? The balanced equation is:

2H₂ + O₂ → 2H₂O

Use 273 K for Temperature.

Express your answer in 3SF with correct unit of measurement.