Practice Problem: Molar Mass of a Gas

The video tutorial explains how to calculate the molar mass of a gas using the ideal gas law. It starts with a sample problem involving a hydrocarbon gas, providing given values such as mass, volume, temperature, and pressure. The tutorial then demonstrates how to use the ideal gas law (PV = nRT) to find the number of moles and subsequently calculate the molar mass. Finally, it identifies the gas as methane based on its molar mass and chemical composition.

What is the mass of the hydrocarbon sample mentioned in the text?

What conditions (temperature and pressure) were given for the gas in the problem?

How do you calculate the number of moles using the ideal gas law?

What is the calculated molar mass of the gas sample?

Which hydrocarbon is identified based on the calculated molar mass?