Chemistry dissolution help?

NH₄Cl(s) + aq → NH₄⁺(aq) + Cl⁻(aq)

According to the equation, the dissolution of 1 mole of NH₄Cl gives 1 mole of NH₄⁺ ions and 1 mole of Cl⁻ ions.

Neglecting the hydrolysis of ions in water :
Amount of NH₄⁺ ions produced = 1 mol
Amount of Cl⁻ ions produced = 1 mol
Total amount of ions produced = (1 + 1) mol = 2 mol