A gaseous mixture containing ethane and methane underwent complete combustion to produce 5.28 g of carbon dioxide and 3.78 g of water. What is the volume ratio of ethane to methane in original mxiture? (1) 1:1 (2) 1:2 (3) 2:1 (4) 1:4
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Answer:
Correct option is D)
CH
4
=20% of 150ml=30ml and C
2
H
4
+C
2
H
6
=120ml
C
2
H
4
=x,C
2
H
6
=120−x
CH
4
+2O
2
→CO
2
(g)+2H
2
O
30 30
C
2
H
4
+3O
2
→2CO
2
+2H
2
O
x 2x
C
2
H
6
+
2
7
O
2
→2CO
2
+3H
2
O
120 -x 240-2x
V
CO
2
=30+2x+240−2x=270ml
Option D is correct. 1:4