Question

What is the ratio
a) by mass
b) by volume
Of
1) hydrogen to oxygen in water (H2O)
2) nitrogen to hydrogen in ammonia(NH3)
3) carbon to oxygen in carbon dioxide (CO2)

Answer 1

Answer:

The ratio of hydrogen and oxygen by mass in water is 1:8. The atomic masses of H and O are 1 g/mol and 16 g/mol respectively. In H2O, the  ratio of hydrogen and oxygen by mass will be 2:16=1:8.

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Answer 2

1) 1;8

2) 8:1

3) 12:32= 3:8

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