Question

how many moles of h2o2 are needed to produce 13g of oxygen are used? 2h2o o2 2h2o2

Answer 1

Answer:

1.625 mol

Explanation:

1) Make the balanced eq first.

2H2O2 => O2 + 2H2O

2) Calculate the moles of oxygen

mass/molar mass = 13/16 = 0.8125

3) Compare the mole of H2O2 and O2 in the balanced eq.

H2O2:O2

2:1

? : 0.8125

so, 0.8125×2 = 1.625 mol