Question

number of positive ion in 1.45 mole of k 2 s o4​

Answer 1

Answer: 1.75 X 10^-24

Explanation: 1 mole K2SO4 has 6.023 X 10^-23 molecules.

So 1.45 moles will have 1.45 X 6.023 X 10^-23 molecules.

1 K2SO4 molecule has 2 positive ions (K+)

So 1.45 moles has 2 X 1.45 X 6.023 X 10^-23 positive ions.

Solving we get the given answer :)