Question

Write two examples of each of the following:

(i) Acidic salts

Answer 1

(i) Acidic salts:

1. Acid salts are a class of salts that produce an acidic solution after being dissolved in a solvent.
2. Its formation as a substance has a greater electrical conductivity than that of the pure solvent.
3. The salts produced when a strong acid is reacted with weak base are known as acidic salts: $\mathrm{Weak}\mathrm{base}+\mathrm{Strong}\mathrm{acid}⇢\mathrm{Acidic}\mathrm{salt}$

Examples of acidic salt:

1. Ammonium chloride$\left({\mathrm{NH}}_4\mathrm{Cl}\right)$ is a colorless crystalline substance that is highly soluble in water and readily forms slightly acidic solutions. Ammonium chloride$\left({\mathrm{NH}}_4\mathrm{Cl}\right)$ is an acidic salt as it is produced from $\mathrm{HCl}$(strong acid) and ${\mathrm{NH}}_3$ (weak base). The reaction is given below:$\underset{\mathrm{Ammonia}}{{\mathrm{NH}}_3\left(\mathrm{aq}\right)}+\underset{\mathrm{Hydrochloric}\mathrm{acid}}{\mathrm{HCl}\left(\mathrm{aq}\right)}\underset{}{\to }\underset{\mathrm{Ammonium}\mathrm{chloride}}{{\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{aq}\right)}$
2. Ammonium sulfate $\left[{\left({\mathrm{NH}}_4\right)}_2{\mathrm{SO}}_4\right]$is an inorganic salt that has many commercial uses. The most common use is as a soil fertilizer. Ammonium sulfate is an acidic salt as it is produced from Ammonia (weak base) and Sulphuric acid (strong acid). The reaction is given below:$\underset{\mathrm{Ammonia}}{2{\mathrm{NH}}_3\left(\mathrm{aq}\right)}+\underset{\mathrm{Sulphuric}\mathrm{acid}}{{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)}\to \underset{\mathrm{Ammonium}\mathrm{sulphate}}{{\left({\mathrm{NH}}_4\right)}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)}$