The Catalytic Decomposition of Hydrogen Peroxide Yields Oxygen Gas and Water

The catalytic decomposition of hydrogen peroxide yields oxygen gas and water. In an experiment, decomposition of hydrogen peroxide yielded 75.3 mL of gas collected over water at 25°C and 742 torr. What mass of oxygen gas was collected? (P_water = 24 torr at 25°C, R = 0.08206 L • atm/K • mol)

A) 0.00291 g
B) 0.0931 g
C) 0.0962 g
D) 0.0993 g
E) 0.962 g

Correct Answer:

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