Question

8 gram complete burning of CH4 gives 18 gram of Co2 the percentage of yield is
a . 99.2%
b . 99.5%
c. 81.81%
d. 90.90%​

Answer 1

Answer:

c.81.81%

Explanation:

Gram molecular mass(GMM) of CO2=44g

GMM of CH4 =16g

16g of CH4 should give 44g of CO2

8g of CH4 should give =(44/16)x8 g of CO2

=22g of CO2

%yield =(actual/theoretical)x100

=(18/22)x100

=81.81%