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The ratio by mass for hydrogen and oxygen in water is given as 1: 8 respectively. Calculate the ratio by number of atoms for a water molecule
The ratio by the number of atoms for a water molecule are:
Elements | Ration by mass | Atomic mass | mass ratio/ Atomic mass | Simplest ratio |
H | 1 | 1 | 1/1 = 1 | 2 |
O | 8 | 16 | 8/16 = 1/2 | 1 |
Thus, the ratio by the number of atoms for water is H : O = 2 : 1.
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