Question

Zn+2hcl=zncl2+h2 calculate volume of h2 at stp when 32.65 g of zn reacts with hcl 1 mol of gas occupies 22.7 l volume at stp atomic mass of zn =65.3u

Answer 1

Hydrogen gas is prepared in the laboratory by reacting dilute HC1 with granulated zinc. Following reaction takes place: 

Zn + 2HC1 → ZnCl2 + H2
Calculate the volume of hydrogen gas liberated at STP when 32.65 g of zinc reacts with HC1. 1 mol of a gas occupies 22.7 L volume of STP; atomic mass of Zn = 65.3 u.