The number of particles in one mole is given by the Avogadro's number which is 6.022*. We denotes by L is the avogadro's number.
To calculate the number of ions in a solution:
Calculate the number of moles, by dividing the mass of sample by the molar mass of the compound, then calculate the formula and multiplying by avogadro's number( 6.022*).
The number of solute is directly proportional to number of ions. The higher the number of solute, then higher the number of ions and number of moles.