Consider 100.0 g samples of two different compounds consisting only of vanadium and oxygen. one compound contains 61.4 g of vanadium and the other has 76.1 g of vanadium. find the ratio:

2:1

Explanation:

The Law of Multiple Proportions states that when two elements A and B combine to form two or more compounds, the masses of B that combine with a given mass of A are in the ratios of small whole numbers.

That is, if one compound has a ratio r₁ and the other has a ratio r₂, the ratio of the ratios r is in small whole numbers.

1. Compound 1

Mass of O = 100.0 - 61.4 = 38.6 g

2. Compound 2

Mass of O = 100.0 - 76.1 = 23.9 g

3. Ratio of the ratios

For example. the compounds might be VO₂ and VO.

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