Question

What is the dissolution reaction for `KNO_3`. How many moles of ions are formed from it?

Answer 1

Dissolution: `KNO_3(s) -> K^+(aq) + NO_3^(-)(aq)`

Explanation:

Observe that per mole of `KNO_3`, 1 mole each of potassium ions (`K^+`) and nitrate ions (`NO_3^-`). Therefore, as a whole, this dissolution reaction will produce 2 moles of ions, being unspecific of species.