The ion product constant of KCl at 20°C is 13.69
The equilibrium equation for solubility for KCl is
KCl(s) ⇄ K⁺(aq) + Cl⁻(aq)
The ion-product constant is written as follows because 3.7M KCl contains equal moles of K ions and Cl ions.
Ksp = [K⁺][Cl⁻]
= [3.7][3.7]
= 13.69
A typical illustration of a solution is the addition of sugar cubes to a cup of tea or coffee. Solubility is a quality that aids in the dissolution of sugar molecules. Thus, the ability of a substance (solute) to dissolve in a specific solvent can be defined as solubility.
Temperature and pressure are the two direct variables that impact solubility. Pressure solely influences the solubility of gases, but temperature affects the solubility of both solids and gases.
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