Consider 0.10 M solutions of the following compounds: AlCl3, NaCN, KOH, CsClO4, and NaF . Place

step 1 Given 0 .1 molar solutions of ALCL3, NACN, K -O -H, and C .S. Cylophoreate. We have to arrange t

Consider 0.10 M solutions of the following compounds: AlCl3,...

Key Concepts

Strong Acid and Strong Base Salts

Salts derived from a strong acid and a strong base generally do not undergo significant hydrolysis because both the cation and anion have negligible interactions with water in terms of proton donation or acceptance. As a result, their aqueous solutions tend to be nearly neutral.

Salt Hydrolysis

Salt hydrolysis is the reaction of the ions from a dissolved salt with water, which can produce either acidic or basic solutions. The extent and direction of hydrolysis depend on the strengths of the parent acid and base from which the salt is derived and whether the resulting ions have a tendency to donate or accept protons.

Conjugate Acid-Base Pairs

In acid-base chemistry, a conjugate acid-base pair consists of two species that differ by one proton. The strength of an ion as an acid or a base is related to the strength of its conjugate counterpart, which in turn influences the pH of the solution when the ion undergoes hydrolysis.

Hydrolysis of Metal Cations

Highly charged small metal cations, such as those derived from weak bases, tend to hydrolyze in water, releasing protons and thereby making the solution acidic. The extent of this acidity is largely determined by the charge density of the cation and its ability to polarize water molecules.

Hydrolysis of Anions

Anions that are the conjugate bases of weak acids will react with water to form the corresponding weak acid and hydroxide ions, increasing the pH of the solution. This reaction is a key factor in making solutions of such salts basic.

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