Gas Laws Combined vs Ideal

What is the pressure in atmospheres of 10.5 mol of acetylene in a 55.0 L cylinder at 37°C?

• 4.86 atm

• 0.58 atm

• 1.72 atm

• 0.21 atm

A gas mixture contains oxygen, nitrogen and carbon dioxide. It has a total pressure of 750.0 mmHg. If the pressure of oxygen is 250.00 mmHg, pressure nitrogen is 345.0 mmHg, what is the pressure of carbon dioxide in atm?

• 155 atm

• 0.2 atm

• 117800 atm

• 1.53 atm

A gas mixture has an overall pressure of 15 atm. It contains 2.0 mole helium, 5.0 mole oxygen and 1.0 mole nitrogen. What is the partial pressures of oxygen gas in the mixture in atm?

• 9.38 atm

• 3.75 atm

• 1.88 atm

If a gas occupies 4600 mL at 0.9 atm and 195°C, what is the new volume in mL at STP?

• 2415.0

• 3.02

• 49123.7

• 612.8

You would use this Gas Law whenever there are changes to a gases volume temperature and pressure.

• Dalton's Law of Partial Pressure

• Ideal Gas Law

• Combined Gas Law

In Ideal Gas Law, pressure must be in which of the following units?

• kPa

• torr

• atm

• mmHg

A gas contains a mixture of helium, oxygen, and hydrogen. It has a total pressure of 1200 mmHg. If the pressure of helium is 76 kPa and the pressure of hydrogen is 0.4 atm, what is the partial pressure of oxygen in atm?

• 1.58

• 0.12

• 2.11

• 0.43

This law states that states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.

• Combined Gas Law

• Dalton's Law of Partial Pressure

• Ideal Gas Law

How many moles of chlorine gas will be needed to fill a 1.8 L balloon at -20°C and 301 kPa?

• -0.003 moles

• 0.04 moles

• 3.88 moles

• -0.31 moles

If a gas occupies 751 ml at 1.50 atm and -20°C, what is the new temp when volume changes to 1000 ml and

the pressure is 102 kPa?

• -1810.92°C

• 226.84 K

• 22908 K

• -17.88°C