Question

weight of copper oxide obtained by treating 2.16 gram of metallic copper with nitric acid and subsequently ignition was 2.7 gram in another experiment 1.15 gram of copper oxide on reduction yielded
0.92 gram of copper showing that the results illustrate the law of definite proportion​

Answer 1

Answer:

Weight of copper oxide obtained by treating 2.16 g of metallic copper with nitric acid and subsequent ignition was 2·7g. ... Thus, the data illustrates the law of definite porportion as in both the experiments the percentage of copper and oxygen are same.