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What is the mass in grams of the hydrogen gas obtained

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hydrogen gas is generated when calcium reacts with water. the volume of gas collected over water at 30 degree celcius and pressure of 988 mm Hg is 641 ml. what is the mass in grams of the hydrogen gas obtained? the pressure of water vapor at 30 degree celcius is 31.82 mm Hg.

Reference no: EM13173951

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