Table of Contents
What is common ion effect and odd-ion effect?
Odd-ion effect occurs when any ion from other electrolyte consumes any ion from interfering electrolyte and hence neutralises common ion effect so degree of dissociation of weak electrolyte is increased. For example, the degree of dissociation of acetic acid is decreased in presence of HCl or CH3COONa or HCOOH etc.
What is odd-ion effect?
Odd-ion effect occurs when any ion from other electrolyte consumes any ion from interfering electrolyte and hence neutralises For example, the degree of dissociation of acetic acid is decreased in presence of HCl or CH3COONa or HCOOH etc.
What is common ion effect and explain?
The common ion effect describes the effect on equilibrium that occurs when a common ion (an ion that is already contained in the solution) is added to a solution. It also can have an effect on buffering solutions, as adding more conjugate ions may shift the pH of the solution.
What is common ion effect example?
The common ion effect is the phenomenon in which the addition of an ion common to two solutes causes precipitation or reduces ionization. An example of the common ion effect is when sodium chloride (NaCl) is added to a solution of HCl and water.
What is the importance of common ion effect?
The common-ion effect plays important roles in controlling the pH of a solution, determining the solubility of a slightly soluble salt and thus can control the formation of a precipitate by either reversing the dissociation of the acid, if the acid had already dissociated or reducing the dissociation [10] if the salt …
How does common ion effect affect solubility?
Common Ion Effect on Solubility Adding a common ion decreases solubility, as the reaction shifts toward the left to relieve the stress of the excess product. Adding a common ion to a dissociation reaction causes the equilibrium to shift left, toward the reactants, causing precipitation.
Which is not example of common ion effect?
Common ion effect is the suppression of degree of dissociation of a weak electrolyte in the presence of a strong electrolyte having common ion . Among the given , CH3COOH+NaOH has no common ion , thus does not exhibit common ion effect .
How does common ion affect pH?
Addition of excess ions will alter the pH of the buffer solution. Therefore, the common ion effect takes a role in pH regulation. In the case of an an acidic buffer, the hydrogen ion concentration decreases, and the resulting solution is less acidic than a solution containing the pure weak acid.
What is common ion effect and how does it affect the solubility of a slightly soluble electrolyte?