Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2)

Question

Answer the following question based on the previously determined balanced chemical equation (H2O2--> 2H2O + O2) for the decomposition of hydrogen peroxide. Express your answer to two decimal places.

How many grams of H₂O₂ are needed to make 1.66 grams of H₂O?

Answer 1

This is similar to the solution for the former problem, but we're solving for the mass of H₂O₂ to produce a mass of water. The equation shows that 1 mole of hydrogen peroxide produces 2 moles of water.

(34.02 g H₂O₂/1 mol H₂O₂)(1 mol H₂O₂/2 mol H₂O)(1 mol H₂O/18.02 g H₂O) 1.66 g H₂O = the answer