Question

The spectrum in Figure 17-19 was obtained for a liquid with the empirical formula of C₃H₆O. Identify the compound.

Short answer

The compound is allyl alcohol.

Step-by-step solution

Step 1. Given information

State the compound with the empirical formula ${\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O}$.

Step 2. Explanation

From the given spectrum, we can find the absorption peaks as follows,
- 2950 cm^-1
- 3350 cm^-1
- 1680 cm^-1
From this we can say C₃ H₆ O will have the following types of bonds and groups:
- C-H
- -OH group
- C=C

This makes possible structures of the compound as CH₂=CH-CH₂-OH.

Allyl alcohol is the compound with the empirical formula ${\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O}$.