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An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. The ...

An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. The empirical formula of the compound is
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  • A C8H22O3
  • B C6H10O3
  • C C12H12O
  • D C6H12O
  • E C3H6O
Correct Answer: Option D
Explanation:
carbon = 72%, hydrogen = 12%, 16%
Dividing by the atomic weight we have for C = \(\frac{5}{1}\) = 6
H = \(\frac{12}{1}\) = 12
O = \(\frac{16}{16}\) = 1
Divide by the smallest number, we have = \(\frac{6}{1}\) = 6
H = \(\frac{12}{1}\) = 12
O = \(\frac{1}{1}\) = 1
The formula is C6H12O

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