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March 29, 2017

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How many grams of magnesium are required to produce a total of 4.05g of hydrogen

  • chemistry - ,

    Mg + what acid? HCL?
    Mg + 2HCl --> H2 + MgCl2
    mols H2 = grams/molar mass
    Use the coefficients in the balanced equation to convert mols H2 to mols Mg.
    Now use mols Mg and convert to grams. g = mols Mg x atomic mass Mg.

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