How many grams of oxygen are formed when 6.21 moles of koh are formed?

99.4 g of O are formed in 6.21 moles of KOH

Explanation:

KOH → Potassium hydroxide

1 mol of KOH has 1 mol of K, 1 mol of O and 1 mol of H

Therefore, 6.21 moles of KOH have 6.21 moles of O

Let's convert the moles to mass: 6.21 mol. 16 g/1 mol = 99.4 g