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  4. 0.58 g of hydrocarbon on combustion gave 0.9 g water. The percentage of carbon is about

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Q. $0.58 \,g$ of hydrocarbon on combustion gave $0.9\, g$ water. The percentage of carbon is about

Organic Chemistry – Some Basic Principles and Techniques

Solution:

Percentage of $H=\frac{2}{18} \times \frac{0.9}{0.58} \times 100=17.24 \%$

$\therefore $ Percentage of $C =100-$ Percentage of $H$

$=100-17.24=82.7 \%$