Question

How many moles of O2 are produced when 5 moles of KCLO3 react?

2KClO3(s) -------> 2KCl(s) + 3O2(g)

15 moles
7.5 moles
10 moles
6 moles

Answer 1

5.0 g of KClO3 gave 0.03 mol of O2 . Hence, percentage purity of KClO3 is : 2KClO3⟶ 2KCl + 3O2.