Ethane burns in oxygen to form CO2 and H2O according to the equation

Organic Chemistry (10)

Ethane burns in oxygen to form CO2 and H2O according to the equation:

2C2H6 + 7O2 → 4CO2 + 6H2O.

If 1250 cc of oxygen is burnt with 300 cc of ethane.

Calculate:

  1. the volume of CO2 formed.
  2. the volume of unused O2.

Answer

(i) Volume of CO2 formed = 4/2 x 300 = 600 cc

(ii) Volume of O2 used = 7/2 x 300 = 1050 cc

Volume of unused oxygen = 1250 - 1050 = 200 cc

  • Exam Year: 2018