Question

How many moles of ethane are required to produce
44 g of CO2(g), after the combustion of ethane?
[NCERT Pg. 20]
(1) 2
(2) 1
(3) 0.5
(4) 0.25​

Answer 1

Answer:

3.) 0.5 moles

Explanation:

2 C2H6 + 7 O2 → 4 CO2 + 6 H2O (Balanced)

This means 2 moles of ethane can produce 4 moles of CO2 .. Therefore 44 g of CO2 means 1 mole of CO2 . So for this we need 0.5 moles of Ethane