Answer the following How is common salt prepared from sea water What will be the approximate pH of the aqueous solutions of the following salts (i) Sodium chloride (ii) Ammonium Chloride

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Solution

Dear student,
Common salt can be prepared by evaporation of sea water. Sea water is collected in division of land and it is allowed to evaporate under sunlight. Water is evaporated leaving behind mixtures of salt, form which common salt is separated by dissolving it in suitable reagent and then, recrystallizing salt from the solution.
Approximate pH of NaCl is 7 and of NH4Cl is 4.5-6.

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