Do the following conversions.
Ethyl cyanide to ethylamine

Explanation

To convert ethyl cyanide (CH3CH2CN) to ethylamine (CH3CH2NH2), we can follow these steps:

### Step 1: Hydrolysis of Ethyl Cyanide
- **Reaction**: Ethyl cyanide (CH3CH2CN) is treated with water in the presence of an acid (H3O+).
- **Product**: This reaction leads to the formation of ethyl carboxylic acid (CH3CH2COOH).

### Step 2: Conversion of Carboxylic Acid to Amide
- **Reaction**: The carboxylic acid (CH3CH2COOH) can be converted to an amide by treating it with ammonia (NH3) and heating.
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