Question

A sample of pure calcium carbonate was found to contain 40% oxygen. Assuming the turth of law of constant composition find out weight of calcium,carbon and oxygen in 5.00g of another sample of calcium carbonate.​

Answer 1

Answer:

In 100 g CaCO

3

, 40 g Ca is present.

In 4 g CaCO

3

, Let x g Ca be present

4

x

=

100

40

⟹x=1.6 g