of gaseous hydrocarbon on combustion gives of and of water vapour. Total number of carbon and hydrogen atoms in the hydrocarbon is .

Question

of gaseous hydrocarbon on combustion gives  of  and  of water vapour. Total number of carbon and hydrogen atoms in the hydrocarbon is .

Canvas Classes · Accepted Answer

Strategy:
 At constant T and P, volume ratios are equivalent to atomic ratios in a combustion reaction. Relate the volumes of  and  vapour to the number of Carbon and Hydrogen atoms respectively.

Step 1: Find atom counts
- Volume ratio  Carbon atoms .
- Volume ratio  Hydrogen atoms .

Step 2: Sum the atoms
Total atoms .

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