Calculate the percentage of :
Fluorine
in sodium aluminium fluoride `[Na_(3)AlF_(6)]` , to the nearest whole number. [Atomic Mass : Na = 23, Al = 27, F = 19]

Explanation

To calculate the percentage of fluorine 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 the compound Na₃AlF₆ by adding the molar masses of all the constituent elements.

- Sodium (Na): There are 3 sodium atoms, and the atomic mass of sodium is 23 g/mol.
\[
\text{Mass of Na} = 3 \times 23 = 69 \, \text{g/mol}
...