A compound X consists of 4.8% carbon and 95.2% bromine by mass.
If the vapour density of the compound is 252, what is the molecular formula of the compound?

Explanation

To find the molecular formula of compound X, we will follow these steps:

### Step 1: Determine the percentage composition and atomic masses
- Given:
- Carbon (C): 4.8%
- Bromine (Br): 95.2%
- Atomic masses:
- Carbon (C): 12 g/mol
...