Zn + 2HCl = ZnCl2 + H2
Which amount would produce more H2: 17gramsZn OR 150 mL of 0.5HCl?

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  1. Two stoichiometry problems but they can be done at the same time.

    mols Zn = grams/atomic mass = ?
    mols HCl = M x L = ?

    Using the coefficients in the balanced equation,
    a. convert mols Zn to mols H2.
    b. convert mols HCl to mols H2.
    Compare a and b.

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