Calculate the molecular mass of the `(NH_2)_2CO`
Given atomic mass of Na = 23, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32

Explanation

To calculate the molecular mass of the compound \((NH_2)_2CO\) (urea), we will follow these steps:

### Step 1: Identify the elements and their quantities in the compound
The compound \((NH_2)_2CO\) consists of:
- Nitrogen (N): 2 atoms
- Hydrogen (H): 4 atoms (since there are 2 NH2 groups)
- Carbon (C): 1 atom
- Oxygen (O): 1 atom
...