IIT/JEE Chemistry Practice #24: Molar Mass of a Gas

The video tutorial explains how to calculate the molar mass of a gas using the ideal gas law. It begins with a problem involving an evacuated glass vessel filled with a liquid and an ideal gas. The tutorial walks through basic calculations to determine the mass and volume of the liquid, then uses the ideal gas law to find the molar mass of the gas. Key steps include rearranging the ideal gas law equation and converting units to match the gas constant.

What is the mass of the liquid that completely fills the glass vessel?

What is the volume of the vessel when filled with liquid?

What is the mass of the gas when the vessel is filled with it?

What is the ideal gas law equation used in this problem?

What is the calculated molar mass of the gas?