Question

In two experiments, 6.3g copper gave 7.1g copper oxide and 5.68g copper oxide gave 5.04g copper. Which law of chemical combination is illustrated by these results?

Answer 1

Answer:

2.16 g of copper metal when treated with nitric acid followed by ignition of the nitrate gave 2.70 g of copper oxide. In another experiment 1.15 g of copper oxide upon reduction with hydrogen gave 0.92 g of copper. Show that the above data illustrate the law of definite proportions