Answer the question(s) that follow about the following reaction.
2H₂O₂ → 2H₂O + O₂
-How many grams of hydrogen peroxide ( H₂O₂ ) are needed to produce 25.0 g of oxygen?

Question

Quizplus · Accepted Answer

The molar mass of O₂ is 32 g/mol, so 25.0 g of O₂ is 25.0 g / 32 g/mol = 0.78125 mol. From the balanced equation, 2 mol of H₂O₂ produce 1 mol of O₂, so 0.78125 mol of O₂ requires 2 * 0.78125 mol = 1.5625 mol of H₂O₂. The molar mass of H₂O₂ is 34 g/mol, so 1.5625 mol * 34 g/mol = 53.125 g of H₂O₂ are needed.

Answer the Question(s) That Follow About the Following Reaction