Question

Magnesium reacts with hydrochloric acid, HCl, to form magnesium chloride and hydrogen gas. The reaction is:

Mg + 2HCl → MgCl2 + H2

What is the mass of HCl that would be required to completely react with 5.2 grams of Mg?

Answer 1

using hot hydrochloric acid solution

using magnesium power instead of a large piece if magnesium

Answer 2

5.2/ 24.3 = 0.214
0.214 x 2 = 0.428
0.428 x 36.5= 15.6g