In the chemical equation, 2H2 + O2 → 2 H2O, if 8.0 grams of oxygen completely react with excess hydrgoen, how many grams of water are produced?

Question

In the chemical equation, 2H2  +  O2  →  2 H2O, if 8.0 grams of oxygen completely react with excess hydrgoen, how many grams of water are produced?

Hriman S. · Accepted Answer

Let’s use dimensional analysis 8.0 g grams O2 * ( 1 mol O2)/(32 g O2) * ( 2 mol H2O)/(1 mol O2) * ( 18.02 g H2O)/(1 mol H2O)= 9.0 grams H2O

1 Expert Answer