* One mole of sodium ions (Na+)
* One mole of chloride ions (Cl-)
This is represented by the following equation:
NaCl(s) → Na+(aq) + Cl-(aq)
Here's why:
* Ionic Compounds: Sodium chloride is an ionic compound, meaning it's formed by the electrostatic attraction between positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-).
* Dissolving in Water: When NaCl is dissolved in water, the polar water molecules surround the ions, weakening the electrostatic attraction between them. This allows the ions to separate and become surrounded by water molecules, forming hydrated ions (indicated by the (aq) symbol).
* Stoichiometry: The chemical formula NaCl indicates that one mole of sodium chloride contains one mole of sodium ions and one mole of chloride ions.
Therefore, when one mole of NaCl dissociates in water, it releases one mole of each ion into the solution.