Question

Calculate the amount of hydrogen under normal conditions, which is released
under the influence of excess hydrochloric acid on 11.2 g of iron. The
interaction proceeds according to the equation: Fe + 2HCl → FeCl2 + H2.

Answer 1

Ответ:

Fe+2HCl=>FeCl2+H2

11,2g (Fe)------xmol (H2)

56g (Fe)-------1 mol

x=(11,2×1)/56=0,2mol (H2)

Answer: 0,2 mol H2