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An organic compound contains 69% carbon, 15.3% hydrogen and 30.7% oxygen. Calculate the the empirical...

Chemistry
JAMB 2022

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
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Correct Answer: Option D
Explanation

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

There is an explanation video available below.


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