Question

the simplest formula of a compound that contains 80 1.8% carbon and 18.2% hydrogen is
(a) CH3
(b) CH
(c) C2H6
(d) none f these​

Answer 1

Answer:

C2H6

Explanation:

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Answer 2

Answer:

C3H8 is the correct answer.

Explanation:

Compound     Composition   Atomic Mass   Atomic Ratio    Simplest Ratio

    C                      81.8%                 12                $\frac{81.8}{12}$ = 6.8          $\frac{6.8}{6.8}$ = 1×3=3

    H                       18.2%                 1                 $\frac{18.2}{1}$ = 18.2         $\frac{18.2}{6.8}$ = 2.7×3=8.1

∴ Empirical Formula = C3H8     ←ANSWER

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