A sample of hydrogen (H2) gas is collected over water at 35C and 745mm. the volume of the gas collected is 72.0ml. How many moles of H2 gas have been collected?

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A sample of hydrogen (H2) gas is collected over water at 35C and 745mm. the volume of the gas collected is 72.0ml. How many moles of H2 gas have been collected?

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