Question

The numbers of moles of BaCO₃ which contain 1.5 moles of oxygen atoms is _______.

(A) 0.5 

(B) 1 

(C) 3 

(D) 6.02 x 10²³

Answer 1

Correct option: (A) 0.5

Since, 1 mole of BaCO₃ contains 3 moles of oxygen

1.5 moles of oxygen ≡ \(\cfrac{1}{3}\) x 1.5 = \(\cfrac{1}{2}\) = 0.5

moles of BaCO₃