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