A compound of C, H, Cl has molecular formula of `C_(2)H_(4)Cl_(2)`. Its vapour density is 49.5. Calculate its total molecular mass without addition of mass of elements.

Explanation

To calculate the total molecular mass of the compound with the molecular formula \(C_2H_4Cl_2\) using its vapor density, follow these steps:

### Step-by-Step Solution:

1. **Understand the Relationship Between Vapor Density and Molecular Mass**:
- The vapor density (VD) of a gas is related to its molecular mass (M) by the formula:
\[
M = 2 \times \text{VD}
...