The ratio of mass of & of an organic compound is . If one molecule of the above compound contains half as much oxygen as required to burn one molecule of compound completely to and . The empiric

Question

The ratio of mass  of  &  of an organic compound  is . If one molecule of the above compound contains half as much oxygen as required to burn one molecule of compound  completely to  and . The empirical formula of compound  is

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Strategy:
 Use the mass percentages to find the C:H atom ratio. Then, the Oxygen content is defined relative to the amount required for burning the corresponding hydrocarbon (). Combine these constraints to derive the empirical formula.

Step 1: Find C:H ratio
 by mass.
Atom ratio . Formula is .

Step 2: Calculate Oxygen content
Oxygen needed to burn  is  moles of .
Number of Oxygen atoms in molecule .
For  (to get whole numbers), . Empirical formula is .

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