For the following reaction, if O2 is used up at a rate of 1.45Mhr, what is the rate of formation of H2O?

Question

For the following reaction, if O2 is used up at a rate of 1.45 M/hr, what is the rate of formation of H2O?

4NH3+5O2→4NO+6H2O

Answer 1

The mole ratio of H₂O to O₂ is 6:5. This means that for every 5 moles of O2 consumed, 6 moles of H2O are produced. This same relationship hols for rates in M/hr. Therefore....

1.45 Mhr-1 O2 x 6 H20/5O2 = 1.74 M/hr rate of H2O formation