How many fluoride ions are present in 175 g of calcium fluoride?

The chemical formula for calcium fluoride is .

The dissociates into ions as:

From the above reaction it is clear that 1 mole of gives 1 mole of and 2 moles of ions.

Molar mass of is

1 mole of " alt="CaF_2" />" /> contains of .

1 mole of contains 2 moles of ions.

So, the number of fluoride ions in 175 g of is:

=

Hence, the number of fluoride ions present in 175 g of calcium fluoride is .