Ive tried every equation an I still cant get the answer

Ive tried every equation an I still cant get the answer

Please give a detailed explanation and what formula to use and why

I just need to find the new volume

8.98 dm^3 of hydrogen gas is collected at 38.8 °C. Find the volume the gas will occupy at -39.9 °C if the pressure remains constant.

1. An unbreakable meteorological balloon is released from the ground.Ground level pressure is 98.5 KPa and the temperature is 18.0 Celsius. The balloon contains 74.0 liters of Hydrogen gas. As the...

1. what is the pressure of a gas in KPa if a gauge used to measure the pressure reads 700.0mmHg?

For the gas unit

A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then filled to a pressure of 0.967 atm at 31 °C with a gas of unknown molar mass and then reweighed to...

A mixture of four gases exerts a total pressure of 975 mm Hg. Gases A and B each exert 220 mm Hg. Gas C exerts 110 mm Hg. What pressure is exerted by gas D?

Suppose that the pressure of 1.00 L of gas is 380. mm Hg when the temperature is 200. K. At what temperature is the volume 2.00 L and the pressure 0.750 atm?

On a cold winter morning when the temperature is –13ºC, the air pressure in an automobile tire is 1.5 atm. If the volume does not change, what is the pressure after the tire has warmed to 15ºC?...

A sample of gas at constant volume and constant number of moles was cooled from 400 K to 200 K. If its initial pressure was 3.50 atm, what was its final pressure? (answer in mmHg)

A sample of gas in a 3.0 L container has a pressure of 4.0 atm. In order for this sample to have a pressure of 101.3 kPa, what size container is needed? Assume that the temperature and amount of gas...

What is the temperature of methane gas (CH4) if 4.78 mol of gas are collected in 9.2 L at 789 torr? PV=nRT All help is greatly appreciated!! Here...

The pressure in a gastank is 10bars. Calculate the pressure in the gastank as the temprature goes from 20C to 95C My calculations: 273.15+95= 368.15K 273.15+20= 293...

A sample of ammonia gas occupies 20.4 mL at 558 mm Hg and 25.2oC. If the volume of the gas is changed to 56.8 mL at 55oC, what is the new pressure? Enter mm for unit. A sample of carbon...

what is the total mass in grams of oxygen in a room measuring 4.0 m by 5.0 m by 2.5 m? assume that the gas is at STP and that air contains 20.95% oxygen by volume

Section 3.4 gas laws question

Imagine we have a balloon filled with argon gas and the room conditions are 1.00 atm and 25°C. Above what temperature would we have to heat the balloon so that it would float? Assume the partial...

A sample of gas under a pressure of 22.0 kPa has a volume of 33.0 cm3. The pressure is increased to 888 kPa, while the temperature remains constant. What volume will the gas occupy at this pressure...