Combustion Analysis of 0

question 2

Multiple Choice

Combustion analysis of 0.800 grams of an unknown hydrocarbon yields 2.613 g CO₂ and 0.778 g H₂O.What is the percent composition of the hydrocarbon?

• A) 66.6% C;33.4% H
• B) 82.3% C;17.7% H
• C) 89.1% C;10.9% H
• D) 92.4% C;7.60% H
• E) not enough information given to solve the problem

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