1.

Which of the following is the correct representation of the solubility product expression for mercurous iodide `(HgI_(2))` ?A. `[Hg_(2)^(2+)][I^(-)]^(2)`B. `[Hg^(+)]^(2)[I^(-)]^(2)`C. `[Hg^(+)][I^(-)]`D. `[Hg^(2+)][I^(-)]^(2)`

Answer» Correct Answer - A
The solubility equilibrium can be represented as `Hg_(2)I_(2)(s)hArrHg_(2)^(2+)(aq.)+2I^(-)(aq.)` The solubility product of a compound is the product of the molar concentrations of the constituent ions, each raised to the power of its stoichiometric coefficient in the equilibrium equation: `K_(sp)=[Hg_(2)^(2+)][I^(-)]^(2)`


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