A 3.00-L closed vessel contains 2.75 g of acetone (C₃H₆O) with a vapor pressure of 282 mmHg at 30°C. Determine if there will be any liquid present in the vessel. If so, calculate the mass of the liquid.

The following apparatus shows three enclosed 0.500 L bulbs connected by stopcocks. Bulb X at 200°C and has a total pressure of 650 mmHg contains Br₂(g), I₂(g), and Cl₂(g). Bulb Y and Bulb Z are both empty and held at a temperature of 95.0°C and 25.0°C, respectively. Initially, the stopcocks are closed, and assume that the volume of the lines joining the bulbs is negligible. 

When the stopcock between X and Y opened and was allowed to reach equilibrium, X and Y has a total pressure of 270 mmHg. Calculate the moles of I₂ present in the system.

Useful information:

An LPG or liquefied petroleum gas is made up of a mixture of propane (C₃H₈) and butane (C₄H₁₀). Assume that the mole fractions of propane and butane in a certain LPG mixture are 0.822 and 0.178, respectively. A 36.5 g sample of an LPG mixture has a volume of 10.0 L at 15.0°C. Calculate the pressure (in atm) of the mixture.

Some air conditioners have a dry mode that removes moisture from the air like a dehumidifier. The dimensions of an office in a building are 9.0 m × 6.0 m × 5.5 m. The temperature outside is 27.0°C and the partial pressure of water in the air at this temperature is 73.0% of the vapor pressure of water. If the air volume in the office is cycled through the air conditioner and all of the water must be removed, determine the mass of the water removed. [vapor pressure of water at 27.0°C = 26.7 mmHg]

If 0.24 moles of a gas has a pressure of 0.62 atm and a volume of 5.3 L, find the temperature of the gas.

Consider an air-filled tire that has a volume of 1250 mL, filled to a total pressure of 85.5 psi, and a temperature of 26°C. Calculate the mass of the air in the tire. Assume that the average molar for air is 28.8 g/mol.

At a pressure of 1.5×10⁴ kPa, calculate the number of molecules of oxygen gas stored in a cylinder tank with a volume of 40 L at a temperature of 50°C.