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Binary compounds of alkali metals and hydrogen react with water to liberate H 2 (g). The H 2 from the reaction of a sample of

Binary compounds of alkali metals and hydrogen react with water to liberate H2(g). The H2 from the reaction of a sample of NaH with an excess of water fills a volume of 0.490 L above the water. The temperature of the gas is 35 C and the total pressure is 770 mmHg .

Part A: Find the mass of H2 liberated.

Part B: Find the mass of NaH that reacted.

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