Element `X` and `Y` form two different compounds. In the first compound, `0.324 g X` is combined with `0.471 g Y`. In the second compound, `0.117 g X` is combined with `0.509 g Y`. Show that these data illusttate the law of multiple proportions.

Explanation

In the first compound:
`0.324 g` of `X` combines with `0.471 g` of `Y`.
In the second compound:
`0.177 g` of `X` combines with `0.509 g` of `Y`.
Therefore, `0.324 g` of `X` combine with the weight of `Y`
`= (0.509 xx 0.324)/(0.117) = 1.4095 g`
Now, the weigths of `Y` that combine with the same weight of `X`, i.e., `0.324 g` of it, are in the ratio of `0.471 : 1.4095` or `1 : 3`. The ratio, being simple, illustrates the law of multiple properties.