Question

Hydrogen peroxide (H202) decomposes to form water and oxygen according to this balanced equation: 2H202(1 → 2H20(1) + 02(8). What is the total mass of oxygen produced when 3.0 moles of H202. decomposes?

Answer 1

When 3.0 moles of hydrogen peroxide decompose, they produce 1.5 moles of oxygen gas, which has a total mass of 48 grams.

Step-by-step explanation:

The question asks about the stoichiometry of the decomposition of hydrogen peroxide (H2O2) and requires the calculation of the mass of oxygen gas produced from the reaction.

According to the balanced chemical equation, 2 moles of hydrogen peroxide produce 1 mole of oxygen gas (O2).

Therefore, if 3.0 moles of H2O2 decompose, it would produce 1.5 moles of O2.

The molar mass of O2 is approximately 32 grams per mole, so 1.5 moles of O2 would have a mass of 48 grams.