Calculate the mass of water produced. Why do you think this process is not used to produce water in desert areas?

Question

1.33 L of H2 and 0.66 L of O2

Assume all of hydrogen and oxygen react to produce water. 

Answer 1

2H2 + O2 ==> 2H2O. Balanced equation. 

1.33 L H2 x 1L O2/2L H2 = 0.665 L O2 required

So the H2 and O2 are in the correct ratio 

The volume of water produced will be 2x1.33 L based on the mole ratio of H2 to O2 to H2O, i.e. 2.66 L water. The mass of water would be 2.66 kg assuming standard conditions. Clearly the desert doesn’t provide standard conditions as the temp is so high.