Question

Consider the reaction below. 2H2 + O2 2H2O How many moles of water are produced from 13.35 mol of oxygen? 6.675 mol 26.70 mol 53.40 mol 66.75 mol

Answer 1

In the balanced equation, we see that the ratio of
`O_(2):H_(2)O` is 1:2 respectively. That being said, we can then set up a proportion to solve for the number of moles of water produced from 13.35 moles of oxygen:

`\frac{1mol_{O_(2)}}{2mol_{H_(2)O}} =\frac{13.35mol_{O_(2)}}{xmol_{H_(2)O}}`

Then we cross multiply and solve for x:

`x=26.7mol_{H_(2)O}`

Therefore the answer is B) 26.70 mol.