What is the H2 / H2O molar ratio? 2 H2 + O2 ---> 2 H2O

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Answer 1 · 2014-05-06T01:08:19

In order to determine the mole ratio, we need to begin with a balanced chemical equation.

For this reaction the balanced chemical equation is
#2H_2 + O_2 -> 2H_2O#

The mole ratios are determined using the coefficients of the substances in the balanced chemical equation.

#2 mol H_2 : 1 mol O_2 : 2 mol H_2O#

The mole ratios for each substance pair would be

#2 mol H_2 : 1 mol O_2#

#(2 mol H_2)/ (1 mol O_2)# or #(1 mol O_2)/ (2 mol H_2)#

#2 mol H_2 : 2 mol H_2O#

#(2 mol H_2)/ (2 mol H_2O)# or #(2 mol H_2O)/ (2 mol H_2)#

I hope this was helpful.
SMARTERTEACHER