A gaseous alkane on complete combustion gives C O 2 a n d H 2 O . If the ratio of moles of O 2 needed for combustion and moles of C O 2 formed is 5 : 3 . find out the formula of alkane.

Question

A gaseous alkane on complete combustion gives C O 2 a n d H 2 O . If the ratio of moles of O 2 needed for combustion and moles of C O 2 formed is 5 : 3 . find out the formula of alkane., C 4 H 10, C 5 H 12, C 3 H 8, C 2 H 6

MARKS App · Accepted Answer

Let the alkane be C n H 2 n + 2 C n H 2 n + 2 + n + n + 1 2 O 2 → n C O 2 + ( n + 1 ) H 2 O M o l e o f O 2 M o l e o f C O 2 = n + n + 1 2 n = 5 3 n = 3 Thus the alkane is C 3 H 8

Search any question & find its solution

Looking for more such questions to practice?