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The molar mass of a compound X is 56. its empirical formula is CH2. X...

Chemistry
NECO 2001

The molar mass of a compound X is 56. its empirical formula is CH2. X is

  • A. butene.
  • B. butyne.
  • C. ethene.
  • D. propene.
  • E. propyne
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Correct Answer: Option A
Explanation

\((CH_{2})x = 56\)

\((12 + 2)x = 56\)

\(14x = 56\)

\(x = \frac{56}{14}\)

\(x = 4\)

Hence, the empirical formula is \((CH_{2}) \times 4\) 

= \(C_{4}H_{8}\)


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