Question

A mass of `55.9*g` of magnesium metal is reacted with an equimolar quantity of hydrochloric acid; what molar quantities of product are generated?

Answer 1

We interrogate the stoichiometric reaction........

Explanation:

`Mg(s)+2HCl(aq) rarr MgCl_2(aq) + H_2(g)`

And thus if you have EQUIMOLAR quantities of metal and acid as specified in the question, only half an equivalent of `MgCl_2` and dihydrogen will be generated.

So you gets approx. `2.3*mol` each of magnesium chloride and dihydrogen gas.