1. The compound KICO3 decomposes according to the following equation:

2KCIO3 -> 2KCL + 3O2
a. what is the mole ratio of KCIO3 to O2 in this reaction?

b. How many moles of O2 can be produced by letting 6.0 moles of KCIO3 react based on the above equation?

c. how many molecules of oxygen gas, O2 are produced in question 1b?

1 answer

a. Look at the numbers. You have 2 mols KClO3 and 3 mol O2.
b. 2 mols KClO3 = 3 mols O2; therefore, 6 mols KClO3 must produce 9 mols O2.
c. There are 6.02E23 molecules in 1 mole of anything.