Prove that water consists of hydrogen and oxygen in the ratio of 2 atoms of hydrogen to 1 atom of water?

Question

This is for my final project in chemistry. Can anyone give me links or possible explainations if you are knowledgable with this. It will greatly be appreciated. Thanks!

Answer 1

Electrolysis of the water gives a ratio of 2 volumes H to 1 volume O. According to Avogadro, one mole of any gas occupies 22.4 L at STP and that one mole of a substance contains 6.02 x 10^23 particles. This means that the ratio of moles of H2 to O2 released is 2 : 1, and the ratio of the number of particles of H2 to O2 released is 2 : 1.