An unknown gaseous hydrocarbon is collected over water
CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance
Problem
An unknown gaseous hydrocarbon is collected over water. The gas occupies 95.0 mL at 24.0 °C and a total pressure of 742 mmHg. The mass of the moist gas is 0.138 g. The vapor pressure of water at 24.0 °C is 22.4 mmHg. Determine the molar mass of the dry hydrocarbon gas.