Question

consider the following first order reaction to H2 O2 equals to 2 H2O plus O2 if the rate constant of the reaction is 1.01 into 10 to the power minus 2 minute min inverse. then what concentration of H2O2 would give rate of 1.12*10 to the power minus 2 Mol 1/L 1/min

Answer 1

1st - O2 / H2O molar ratio? 2 H2 + O2 ---> 2 H2O 

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

For this reaction the balanced chemical equation is
2H2+O2→2H2O

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

2molH2:1molO2:2molH2O

The mole ratio for O2H2O is:

2molH2:1molO2

2molH21molO2 or 1molO22molH2

1molO2:2molH2O

1molO22molH2O or 2molH2O1molO2