Calculate the percentage of Sodium in Sodium aluminium fluoride. `(Na_3 Al F_6)`.
(F = 19, AI = 27, Na = 23)

Explanation

To calculate the percentage of sodium in sodium aluminium fluoride (Na₃AlF₆), we will follow these steps:

### Step 1: Determine the molar mass of Na₃AlF₆
We need to calculate the total molar mass of sodium aluminium fluoride using the atomic masses provided.

- Sodium (Na) = 23 g/mol
- Aluminium (Al) = 27 g/mol
- Fluorine (F) = 19 g/mol
...