What is the percentage of duterium in heavy water ?

Options

A. `20 %`
B. `80 %`
C. `60 %`
D. `40 %`

Explanation

To find the percentage of deuterium in heavy water (D2O), we can follow these steps:

### Step 1: Understand the composition of heavy water
Heavy water has the molecular formula D2O, which means it consists of two deuterium (D) atoms and one oxygen (O) atom.

### Step 2: Determine the molar mass of heavy water (D2O)
- The molar mass of deuterium (D) is approximately 2 g/mol.
- The molar mass of oxygen (O) is approximately 16 g/mol.
...