How many barium ions does one mole of barium phosphate contain?

Answer : The number of barium ion is,

Explanation :

The formula of barium phosphate is,

Barium phosphate is formed from three barium ion and 2 phosphate ion by criss-cross method. That means,

1 mole of barium phosphate dissociates to give 3 moles of barium ion and 2 moles of phosphate ion.

Or,

As we know that, 1 mole contains number of ions.

1 mole of barium phosphate dissociates to give moles of barium ion and moles of phosphate ion.

The number of barium ion =

The number of phosphate ion =

Hence, the number of barium ion is,