Solubility and Solubility Product - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main
Quick Facts
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Solubility and Solubility Product is considered one the most difficult concept.
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50 Questions around this concept.
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EASYFor which of the following salt solubility product can be defined
The solubility products of Al(OH)3 and Zn(OH)2 are 8.5x10-23 and 1.8x10-14 respectively. If NH4OH is added to a solution containing Al3+ and Zn2+ ions, then substance precipitated first is
For a sparingly soluble salt $\mathrm{AB}_2$, the equilibrium concentrations of $\mathrm{A}^{2+}$ ions and $\mathrm{B}^{-}$ions are $1.2 \times 10^{-4} \mathrm{M}$ and $0.24 \times 10^{-3} \mathrm{M}$, respectively. The solubility product of $\mathrm{AB}_2$ is :
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Solubility of a gas in a liquid increases by
Concepts Covered - 1
Solubility and Solubility Product
Solubility
The maximum amount of a particular solute in grams, which can dissolve in 100 grams of solvent at a given temperature is called solubility. It is denoted by 's' and is expressed in g. The number of moles of solute in 1 L of saturated solution is known as molar solubility.
Solubility decreases with the increase in the concentration of common ion. It increases with temperature and increases in case the ions formed from the sparingly soluble salt undergo some sort of reaction like complexation.
Example, The solubility of AgCl in water in presence of AgNO3
Solubility increases due to complex ion formation. For example, AgCl has more solubility in ammonia due to complex formation
Solubility Product: It is the product of the molar concentrations of ions of an electrolyte in a saturated solution at a particular temperature. It is denoted by Ksp or S.
General Representation
Relation between Solubility(s) and Solubility Product (Ksp)
s 0 0
- xs ys
Solubility Product and Precipitation
- If Ksp ≈ Ionic product
The solution is saturated and for precipitation, more solute is to be added. - If Ionic product > Ksp
The solution is supersaturated so easily precipitated. - If Ionic product < Ksp
The solution is unsaturated so no precipitation takes place.
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