What mass of hydrogen will be released when zinc interacts with 0.6 mole mole of hydrochloric acid?

1. We make a chemical equation:

Zn + 2HCl = ZnCl2 + H2.

2. Find the amount of substance hydrogen:

n (H2) = M * n (HCl) = 0.5 * n (HCl) = 0.3 mol (not according to the formula).

3. Find the mass of hydrogen:

m (H2) = n * M = 0.3 mol * 2 g / mol = 0.6 g.

Answer: m (H2) = 0.6g.

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