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A CHEM101 student has a 25.0 mg sample of magnesium that gives a volume of 26.0...

A CHEM101 student has a 25.0 mg sample of magnesium that gives a volume of 26.0 mL of H2(g). If the atmospheric pressure is 30.68 inches of Hg calculate how many mm of H2O will be above the water in the beaker.

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Ma 25.0 mg mass 24.305 mol molar maвъ mol O025 0 ..moles of Mg 24.305 Ma + 2 H20 MgtoH)2 H2 mel O.0250 H2 produced moles 24.3

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