Question

Oxygen is evolved by heating KClO3 using MnO2 as catalyst; 2KClO3 2KCl + 3O2 (i) Calculate the mass of KClO3 required to produce 6.72 litres of O2 at S.T.P. [Atomic mass of K=39; Cl=35.5; O=16] (ii) Calculate the number of moles of oxygen present in the above volume and also the number of molecules.

Answer 1

Explanation:

hope this helps you.....

Answer 2

Answer:

18.10 square is the answer