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Suppose you wanted to dissolve an aluminum block with a mass of 15.4 g
What mass of H2 gas (in g) would be produced by the complete reaction of the aluminum block?.

  • Chemistry -

    2Al + 6HCl ==> 2AlCl3 + 3H2

    Convert 15.4 g Al to moles. moles = grams/molar mass
    Convert moles Al to moles H2 using the coefficients in the balanced equation.
    Convert moles H2 gas to grams. grams = moles x molar mass.

  • Chemistry -


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