Question

What number of moles of O2 will be produced by the decomposition of 7.6 moles of water H2O --> H2 + O2

Answer 1

• 3.8 moles of O2 will be produced by the decomposition of 7.6 moles of water.

Step-by-step explanation:

Balanced equation: 2 H2O → 2 H2 + O2

Here we see "2" molar ratio before water, so water will have half of the moles, as it has "1" molar ratio.

Moles of O2 → 7.6/2 → 3.8 moles.