Answer
Number of moles of HCl = 13.48 mol
Explanation
Given:
Moles of water = 6.74 mol
Required: Moles of HCl
Solution
Step 1: Write a balanced chemical equation
[tex]4HCl\text{ + O}_2\rightarrow2H_2O\text{ + 2Cl}_2[/tex]Step 2: Use the stoichiometry to calculate the moles of HCl
The molar ration between HCl and H2O is 4:2
Therefore moles of HCl = 6.74 mol x (4/2) = 13.48 mol