Question

Hydrogen combines with chlorine to form HCl. In certain number of moles of HCl, the mass of chlorine present is 355g. What is the mass of hydrogen combined? Ar values; H :1.0, Cl :35.5

Answer 1

Answer:

Explanation: In order to combine and form HCl, one molecule of hydrogen gas and chlorine gas is combined to give 2 molecules of HCl. H2 + Cl2 → 2 HCl i.e. in the ratio of 1:1:2. In terms of mass, the ratio is 1: 35.5: 36.5.