Question

Given the decomposition of hydrogen peroxide, calculate the moles of oxygen gas produced from 4.20 mol of H2O2.
2H2O2(l)→2H2O(l)+O2(g)

Answer 1

as the given reaction is

2 H2O2(l)---------> 2 H2O(l) + O2(g)

as we observed the reaction is balanced here ...... in case if reaction is not balanced then we have to balance the reaction at first.

now after observing the balance reaction ,

2 mole of H2O2 decompose and produces 1 mole of O2 . so means when H2O2 decomposes its 1/2 mole of oxygen will produce .

now the mole of oxygen gas produced = 1/2 mole of H2O2

mole of H2O2 = 4.20

so oxygen will produce = 4.20/2 = 2.10 mole .....

IF U SATISFY WITH THE SOLUTION PLEASE LIKE IT ..................THNKXXXXXXXXX