Common Ion Effect in Salts

Common Ion Effect in Salts leads to reduced solubility of salts when it already contains one of the ions. The effect is seen in the form of solubility and precipitation.

Common Ion Effect in Solubility of Salts

Solubility of salts reduces in presence of common ion. Consider NaCl, when it is dissolved in water it dissociates in sodium and chloride ions and when some more chloride ions from any other source like AgCl , reduces the solubility of the salt and may result in precipitation.

Common Ion Effect in Precipitation Reactions

In Precipitation Reactions, the common ion effect reduces the solubility and results in precipitation. The increase in common ion shifts the equilibrium and decreases the solubility.

Common Ion Effect – Definition, Explanation, Examples

Common ion effect is a phenomenon in chemistry that describes the decrease in solubility of a compound when it is dissolved in a solution that already contains one of its constituent ions. This effect occurs due to the principle of chemical equilibrium and Le Chatelier’s principle.

In this article, we will learn in detail about the common ion effect, its impact on solubility, and its validity in the case of acids, bases, and salts. We will also learn its limitations and FAQs based on the common ion effect.

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What is Common Ion Effect?

Common ion effect is a chemical phenomenon that causes a decrease in the solubility of an ionic precipitate by the addition of a soluble compound with an ion in common with the precipitate. It is based on the principle of chemical equilibrium, which states that if an equilibrium becomes unbalanced, the reaction will shift to restore the balance. The common ion effect is a result of Le Chatelier’s principle....

Impact of Common Ion Effect on Solubility

If you observe in the above example, solubility of AgCl was affected due to common ion effect. The other impacts of common ion effect on solubility is as described below,...

Common Ion Effect on pH

Common ions may result in effects of disassociation of weak acid and bases in order to maintain equilibrium in the solution. It Influences the degree of dissociation of weak acids and bases by shifting the equilibrium in a particular direction that reduces the concentration of common ion and hence disrupts the pH level of solution. Let us see Common Ion Effect in both strong and weak acids and bases....

Common Ion Effect in Salts

Common Ion Effect in Salts leads to reduced solubility of salts when it already contains one of the ions. The effect is seen in the form of solubility and precipitation....

Applications of Common Ion Effect

The applications of common ion effect is mentioned below:...

Limitations of Common Ion Effect

Common ion effect is useful in understanding equilibrium in solutions but its affects can depend on various factors like temperature and other external factors. Some of the limitations of Common ion effect are listed below,...

Conclusion

Common ion effect gives an appropriate idea of equilibrium in any solution which we have to handle carefully(take care of temperature, the presence of ions and strong electrolytes). The effect on its solubility, common ion effects in salt and common ion effects in acid or bases is discussed thoroughly in the article....

Common Ion Effect FAQs

What is meaning of common ion effect?...