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32 solutions

Ideal Gas Law Molar Mass

Q. The mass of an evacuated 260 mL flask is 143.167 g. The mass of the flask filled with 272 torr of an unknown gas at 25 ∘C is 144.187 g. Calculate the molar mass of the unknown gas.

Solved • Mar 29, 2020

Ideal Gas Law Molar Mass

Q. A chemist isolated a gas in a glass bulb with a volume of 255 mL at a temperature of 25.0°C and a pressure (in the bulb) of 10.0 torr. The gas weighed 12.1 mg. What is the molar mass of the gas?

Solved • Mar 24, 2020

Ideal Gas Law Molar Mass

Q. A 1.65 g sample of an unknown gas at 75 °C and 1.10 atm is stored in a 2.85 L flask. What is the density of the gas? What is the molar mass of the gas?

Solved • Mar 13, 2020

Ideal Gas Law Molar Mass

Q. A gaseous compound has a density of 1.87 g/L at 28.5 and 1.89 atm. What is the molar mass of the compound?

Solved • Mar 13, 2020

Ideal Gas Law Molar Mass

Q. A 2.76 mol sample of a diatomic ideal gas in a steel flask at 37C has a pressure of 450 torr. After some of the gas is removed from the same container, the temp is lowered to 16C and the pressure decreases to 249 torr. If the sample of removed gas is found to weigh 76.95 g, what is the identity of the gas?

Solved • Mar 3, 2020

Ideal Gas Law Molar Mass

Q. 6. Consider a balloon that will expand without any restriction until it pops. If the balloon can hold a maximum of 5.0 L of gas before it pops, and you're filling the balloon at a mass flow rate of 3.0 g/s of hydrogen gas, determine how long you can fill the balloon before it pops if the gas and the surrounding atmosphere is at 26 °C. Take the outside pressure to be 0.97 atm.

Solved • Feb 17, 2020

Ideal Gas Law Molar Mass

Q. At 590.4 mmHg and 55.2oC, a 8.29-L sample of a hydrocarbon gas has a mass of 6.70 g. What is the formula of the gas?

Solved • Feb 27, 2020