What mass of O₂, in grams, is produced in the decomposition of 100 g of KClO₃ by the following reaction?
2 KClO₃(s) $\rightarrow$ 2 KCl(s) + 3 O₂(g)

Question

What mass of O₂, in grams, is produced in the decomposition of 100 g of KClO₃ by the following reaction? 2 KClO₃(s) $\rightarrow$ 2 KCl(s) + 3 O₂(g)

Quizplus · Accepted Answer

The balanced chemical equation shows that 2 moles of KClO3 produce 3 moles of O2. The molar mass of KClO3 is 122.55 g/mol, and the molar mass of O2 is 32.00 g/mol. Therefore, 100 g of KClO3 will produce (100 g / 122.55 g/mol) * (3 mol O2 / 2 mol KClO3) * (32.00 g/mol O2) = 39.2 g of O2.

What Mass of O2, in Grams, Is Produced in the Decomposition

What Mass of O₂, in Grams, Is Produced in the Decomposition