Question

The number of moles of CO2 that contains 16g of oxygen is:
(a) 0.25
(b) 0.5
(c) 1.00
(d) 1.50

Answer 1

CO2 is 22g as we have to convert it into moles it is 12/22 = 0.5 moles.

Answer 2

(b) 0.5 moles of CO2 that contains 22g of oxygen.