Question

How many moles of water are made from complete reaction of 2.2 moles of oxygen gas with hydrogen gas? Given the reaction: 2H2 + O2 → 2H2O

Answer 1

Answer : The number of moles of water produced are, 4.4 moles.

Explanation : Given,

Moles of oxygen gas = 2.2 moles

The given chemical reaction is:

$2H_2+O_2\rightarrow 2H_2O$

By the stoichiometry we can say that, 2 moles of hydrogen gas react with 1 mole of oxygen gas to give 2 moles of water as a product.

From the balanced chemical reaction we conclude that,

As, 1 mole of oxygen gas react to give 2 moles of water.

So, 2.2 mole of oxygen gas react to give $2.2\times 2=4.4$ moles of water.

Thus, the number of moles of water produced are, 4.4 moles.