# Find the Formula of compound X

## Homework Statement

When 1.11 g of a compound X is completely burnt,1.98 g of carbon dioxide and 0.81 g of water were formed. Which of the following could be X?

A. CH$$_{3}$$CH$$_{2}$$CH$$_{3}$$
B. CH$$_{3}$$CH$$_{2}$$COOH
C.CH$$_{3}$$COCH$$_{3}$$
D.C$$_{6}$$H$$_{5}$$CH$$_{2}$$OH

## The Attempt at a Solution

I tried

C$$_{x}$$H$$_{y}$$ + {x+$$\frac{y}{4}$$}O$$_{2}$$ $$\rightarrow$$
XC0$$_{2}$$ + $$\frac{y}{2}$$H$$_{2}$$O

but how about the oxygen atom(s) within compound X?

How can I form a balanced equation for X containing O?

Sorry about the equations and formulae... can't get the subscripts in the right positions.

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