ICSE Class 10 Chemistry 2018 Solved Paper

Ethane burns in oxygen to form ${\CO}_2$ and ${\H}_2 {\O}$ according to the equation :

2 {\C}_2 {\H}_6+7 {\O}_2 → 4 {\CO}_2+6 {\H}_2 {\O} .

If 1250 cc of oxygen is burnt with $300 {\cc}$ of ethane.
Calculate:

Question : 69 of 80

Marks: +1, -0

the volume of

{\CO}_2

formed.

Solution:

\table 2 {\C}_2 {\H}_6,+,7 {\O}_2, →, 4 {\CO}_2,+,6 {\H}_2 {\O} ;2,:, 7,:, 4

If 2 vol. of

{\C}_2 {\H}_6

forms 4 vol. of

{\CO}_2

then

300 {\cc}

{\C}_2 {\H}_6

forms

\;{4}/{2} × 300

=600 {\cc} \;\text " of "\; {\CO}_2

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