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An organic compound contains 69% carbon, 15.3% hydrogen a...

An organic compound contains 69% carbon, 15.3% hydrogen and 30.7% oxygen. Calculate the the empirical formula [C=12, H = 1, O = 16]

A.

C $_4$ H $_12$ O

B.

C $_3$ H $_9$ O

C.

C $_4$ H $_9$ O

D.

C $_3$ H $_8$ O

View answer & explanation

Correct answer is D

C $\frac{69}{12}$ H $\frac{15.3}{1}$ O $\frac{30.7}{16}$

C = 5.75, H = 15.3, O = 1.92

C $\frac{5.75}{1,92}$ H $\frac{15.3}{1.92}$ O $\frac{1.92}{1.92}$

C $_3$ H $_8$ O

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