Question

1.375 g of cupric oxide was reduced by heating in current of hydrogen and the
weight of copper that remained was 1.098 g. In another experiment, 1.179 g of
copper was dissolved in the nitric acid and the resulting copper nitrate converted
into cupric oxide by ignition. The weight of cupric oxide formed was 1.476 g. Show
that these results illustrate the law of constant proportions. (5)​

Answer 1

Answer:

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Explanation:

1.375 g of cupric oxide was reduced by heating in a current of hydrogen and the weight of copper that remained was 1.098g. In another experiment 1.179 g of copper was dissolved in nitric acid and the resulting copper nitrate was converted into cupric oxide by ignition . the weight of cupric oxide formed was 1.476 g.

Answer 2

the answer is .............