Q. A hydrocarbon contains 80% carbon. What is the empirical formula of the compound?
Organic Chemistry – Some Basic Principles and Techniques
Solution:
Elements % Relative no. of atoms Simplest ratio Carbon 80 $\frac{80}{12} = 6.66$ $\frac{ 6.66}{6.66} = 1$ Hydrogenn 20 $\frac{ 20}{1} = 20$ $\frac{ 20}{6.66} = 3$
Empirical formula $= CH_3$
| Elements | % | Relative no. of atoms | Simplest ratio |
|---|---|---|---|
| Carbon | 80 | $\frac{80}{12} = 6.66$ | $\frac{ 6.66}{6.66} = 1$ |
| Hydrogenn | 20 | $\frac{ 20}{1} = 20$ | $\frac{ 20}{6.66} = 3$ |