Combined Gas Law Too

322 L of hydrogen occupies a volume of 197 L at STP (0.00°C & 1.00 atm). If the initial temperature of the hydrogen was 37° C, what was its initial pressure?

A sample of sulfur dioxide occupies a volume of 652 mL at 40.0° C and 720 mm Hg. What volume will the sulfur dioxide occupy at STP (0.00° C & 760.0mmHg)?

The initial temperature of a 1.00 L sample of argon is 20.0° C. The pressure is decreased from 720.0 mm Hg to 360.0 mm Hg and the volume increases to 2.14 liters. What was the change in temperature of the argon?

A sample of nitrogen gas occupies a volume of 2.00 L at 756.0 mm Hg and 0.00° C. The volume increases by 2.00 L and the temperature decreases to 137 K. What is the final pressure exerted on the gas?

if I initially have a gas at a pressure of 12.0 atm a volume of 23.0 liters and a temperature of 200K and I then raise the pressure to 14.0 atm and increase the temperature to 300 K, what is the new volume of the gas in liters? (3 sig figs)

A gas takes up a volume of 17.0 liters, has a pressure of 2.30 atm, and a temperature of 299 K. If I raise the temperature to 350. K and lower the pressure to 1.50 atm, what is the new volume of the gas in liters? (3 sig figs)

A gas that has a volume of 28 liters, a temperature of 45 ⁰C, and an unknown pressure has its volume increased to 34 liters and its temperature decreased to 35 ⁰C. If I measure the pressure after the change to be 2.0 atm, what was the original pressure of the gas? (Don't forget units)

A gas has a temperature of 14 ⁰C, and a volume of 4.5 liters. If the temperature is raised to 29 ⁰C and the pressure is not changed, what is the new volume of the gas? (Don't Forget Units)

If I have 17.00 liters of gas at a temperature of 67.00 ⁰C and a pressure of 88.89 atm, what will be the pressure of the gas if I raise the temperature to 94.00 ⁰C and decrease the volume to 12.00 liters? (don't forget units)

I have an unknown volume of gas at a pressure of 0.50 atm and a temperature of 325 K. If I raise the pressure to 1.2 atm, decrease the temperature to 320 K, and measure the final volume to be 48 liters, what was the initial volume of the gas?