The following salts dissolve readily in cold water except

Assessment: WAEC SSCE - Chemistry - 1995 (Objective) Subject: Chemistry

Question 1 Report

The following salts dissolve readily in cold water except
Answer Details
Among the given options, the salt that does not dissolve readily in cold water is PbSO4. This is because PbSO4 is an ionic compound with a high lattice energy, meaning that its ions are held together by strong electrostatic forces of attraction. These forces of attraction make it difficult for the PbSO4 crystals to break apart and dissolve in water. Therefore, PbSO4 is considered insoluble in water. The other options, such as CaCI2, (NH4)2SO4, Na2CO3, and Na2SO3, readily dissolve in cold water due to their ionic nature and low lattice energy.
Read lesson note on Acids, Bases And Salts (Ghana Only) (WAEC)
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