8) The unit of 1 atmosphere used to describe the pressure of a gas is equal to A) 1 mmHg. B) 100 mmHg. C) 200 mmHg. D) 600 mmHg. E) 760 mmHg. 9) A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg? A) 1.50 mmHg B) 507 mmHg C) 760 mmHg D) 1140 mmHg E) 7.5 mmHg 10) A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in torr? A) 1.50 torr B) 507 torr C) 760 torr D) 1140 torr E) 7.5 torr

1. À bag of potato chips is packaged at sea level (1.00 atm) and has a volume of 0.315 L. If this bag of chips is transported to a store across the country. When put on the shelf, the baq has a volume of 0.410 L. What is the air pressure at the store?

A helium-filled weather balloon has a volume of 683 L at 22.9°C and 755 mmHg. It is released and rises to an altitude of 5.47 km, where the pressure is 457 mmHg and the temperature is –13.1°C. The volume of the balloon at this altitude is _____ L.

In a mixture of argon and hydrogen, occupying a volume of 1.54 L at 860.0 mmHg and 31.0 oC, the mass of the argon is 1.6 g. What is the partial pressure of argon?   41.3 mmHg   819 mmHg   491 mmHg   430 mmHg   369 mmH

A.) What is the temperature of 0.45 mol of gas at a pressure of 1.0 atm and a volume of 12.0 L ? Express the temperature in kelvins to two significant figures.   B.) A weather balloon is inflated to a volume of 25.9 L at a pressure of 752 mmHg and a temperature of 27.5∘C. The balloon rises in the atmosphere to an altitude where the pressure is 400. mmHg and the temperature is -15.3∘C. Assuming the balloon can freely expand, calculate the volume of the balloon at this altitude.

The volume of a bicycle tire is 1.35 liters and the manufacturer recommends a tire pressure of 125 PSI.a. If you want the bicycle tire to have the correct pressure at 20.0 °C, what volume of air is required at STP?b. If you fill the tire with nitrogen, what is the mass of the gas?c. You fill the bicycle tire to 125 PSI on a cold december day (-22 °F), and leave it until a hot day in July (101 °F). What is thepressure of the tire (assuming that it does not leak and it does not change volume or burst).

3. A certain mass of magnesium is reacted with 6M HCl. The hydrogen gas liberated is collected by displacing 200 mL of water. The pressure of the gas and the atmospheric pressure are equalized. The atmospheric pressure is 762 mmHg. The temperature of the experiment is 27°C. How many moles of hydrogen have been liberated, and what is the mass of the magnesium that reacted?

If a sample of gas occupies 14.3 mL in a balloon at a pressure of 1.25 atm, what volume will it occupy if the pressure is reduced to 0.83 atm with no change in temperature? 9.50mL O 9.50L O 22mL None of the listed choices are correct. O 21.5mL O 9.5mL