Question

Number of moles of $CaC{O}_3$ which contains 1.5 moles of oxygen atoms is:

• A. 1.5
• B. 1
• C. 0.5
• D. 2

Answer 1

Answer: (C)

0.5

1 mole of $CaC{O}_3$ contain 3 moles of oxygen atoms.

So, 0.5 moles of $CaC{O}_3$ contain 1.5 moles of oxygen atoms.