If 0.30 mol of Zn are added to HCl containing 0.52 mol of HCl , how many moles of hydrogen are produced?

Zinc and HCl react according to the following reaction:

Zn(s) + 2 HCl(aq)-------->ZnCl2(aq) + H2(g)

You need 2 moles of HCl to neutralize 1 mole of Zn
So 0.52 moles of HCl produce 0.52/2= 0.26 moles of gas H2