Question

100ml solution of KNO3 cannot hold more than 37gram of KNO3 in dissolved state​

Answer 1

Answer:

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Answer 2

Answer:

100ml solution of KNO3 cannot hold more than 37gram of KNO3 in dissolved state​

Explanation:

KNO3 dissolves in water due to hydration forces or attractions between the polar water molecules and the ions K+ and NO3- in the KNO3 crystal (also called ion-dipole forces). The ions are attracted to each other by strong coulombic forces. Though a single ion-dipole force is weaker than the coulombic force between ions, the ion-dipole forces are numerous and can lead to dissolving. So essentially, there is a “competition” between the coulombic forces and the ion-dipole forces. There is a limit to the solubility of KNO3 because at some concentration of K+ and NO3- ions, the coulombic forces that attract the ions outweigh the hydration forces between the ions and the water dipole.