Question

If 20gm of carbon burns completely in 40 gm of oxygen in a closed container the product will​

Answer 1

amount of oxygen left will be 60%. Explanation : Molecular mass of carbon = 12. => 12 gms of carbon =1 mole carbon.

Answer 2

Answer: 44g CO2

Explanation: C + o2 =====> CO2

1 mole of carbon = 1 mole of CO2

12grams of carbon = 44 g CO2

1 mole of O2 = 1 mole of CO2

Molecular mass of O = 16

Molecular mass of O2 = 32

32g of O2 = 44 g CO2