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Nitrogen forms various oxides. 1. Identify the law of chemical combination illustrated here. Also state the law. 2. Determine the formula of each oxide from the given data and illustrate the law. Oxides Mass of N Mass of O Formula Oxide I 14 16 ...... Oxide II 14 32 ...... Oxide III 28 16 ...... Oxide IV 28 48 ...... |
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Answer» 1. Law of multiple proportions. When two elements combine to form more than one compound the different mass of one of the elements which combine with the fixed mass of the other element bear a simple ratio. 2.
In NO and NO2 , the masses of oxygen combining with a fixed mass (14 g) of nitrogen are in the ratio, 16:32 = 1:2. Similarly, in N2O and N2O3 , the masses of oxygen combining with a fixed mass (28 g) of nitrogen are in the ratio, 16:48 = 1:3. These are simple whole number ratios. Hence, the law of multiple proportions is verified. |
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