Question

1.08g of Cu wire was reacted with HNO3 & the resulting solution was dried and lignited, then 1.35g of copper oxide when heated in flow of H2 giving 1.84g of Cu. Show that these data are in accordance with the law of constant composition​

Answer 1

Answer:

Weight ratio of Cu : O in copper oxide

1= 1.08/0.27= 4/1

Weight ratio of Cu : O in copper oxides

2= 1.84/2.3−1.84=4/1

The data illustrates the law of constant composition.