Question

Calculate the volume of H2 when Zn react with excess sulfuric acid

Answer 1

Answer:

   Zn + H2SO4====> ZnSO4 + H2

   1 Gram Atom of zinc- metal liberates 1- mole or 22400 ml of Hydrogen gas at STP.

   ie., 65.38 g of zinc on Reaction with dil.sulphuric acid liberates 22400 ml of Hydrogen gas at STP.

   So to produce 224 ml of Hydrogen at STPwe require =224/22400x65.38= 0.6538 g of zinc.

Explanation: