The Ideal Gas Law Answers

Use your understanding of the ideal gas law to identify the correct relationships among the variables. Pressure is .

Temperature is .

Volume is .

Moles are .

Identify the ideal gas law equation.

How many moles of oxygen must be placed in a 3.00 L container to exert a pressure of 2.00 atm at 25.0°C?Formula: PV = nRT(R = 0.0821 Latm/molK) Which variables are given?

Which variables are unknown?

Solve the problem for the moles of oxygen. mol O2

A sample of gas contains 6.25 × 10-3 mol in a 500.0 mL flask at 265°C. What is the pressure of the gas in kilopascals?Formula: PV = nRT(R = 8.31 LkPa/molK)Which variables are given?

Which variables are unknown?

Solve the problem for the pressure of oxygen. kPa

A rigid, 2.50 L bottle contains 0.458 mol He. The pressure of the gas inside the bottle is 1.83 atm. If 0.713 mol Ar is added to the bottle and the pressure increases to 2.05 atm, what is the change in temperature of the gas mixture? Use the correct number of significant digits.Formula: PV = nRT(R = 0.0821 Latm/molK)The initial temperature of the gas is K.

The final temperature of the gas is K.

The temperature change is K.