Question

4. How many moles of ethane are required to produce
44 g of CO2(g). after the combustion of ethane?
[
(1) 2.
(2)1
(3) 0.5
(4) 0.25​

Answer 1

Answer:

0.5

Explanation:

2C2H6 + 5O2 ---> 4CO2 + 2H2O

Given Moles of CO2= Given mass/ Molar mass

=44/44=1

From the equation,

4 moles of CO2----> 2 moles of C2H6

Then, 1 mole of CO2----> 1×2/4 = 0.5 moles of C2H6