Question

Number of moles of co2 which contain 8 gram of O2

Answer 1

Answer is AWM and Kar98k

Answer 2

Weight of O2 = 8 gm

Molar mass of O2 = 32 gm

Number of miles of oxygen = 8/32 = 0.25

1 mole of CO2 contains 1 mole of O2

So, 0.25 mole of O2 is present in 0.25 mole of CO2