A 40 mL of a mixture of H2 and O2 was placed in a gas burette at 18°C and 1 atm P
CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A 40 mL of a mixture of H2 and O2 was placed in a gas burette at 18°C and 1 atm P. A spark was applied so that the formation of water was complete. The remaining pure gas had a volume of 10 mL at 18°C and 1 atm P. If the remaining gas was H2, what was the initial mole % of H2 in mixture?