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(i) Write the chemical equation for the reaction that occurred in the test tube.(ii) Which salt has the greater value of Ksp : AgBr or AgI ? Justify your answer.1998 A (Required)Solve the following problem related to the solubility equilibria of some metal hydroxides inaqueous solution.(a)The solubility of Cu(OH)2(s)is 1.7210-6gram per 100. milliliters of solution at 25C.(i)Write the balanced chemical equation for the dissociation of Cu(OH)2(s)in aqueoussolution.(ii) Calculate the solubility (in moles per liter) of Cu(OH)2at 25C.(iii)Calculate the value of the solubility-product constant, Ksp, for Cu(OH)2at 25C.(b)The value of the solubility-product constant, Ksp, for Zn(OH)2is 7.710-17at 25C.(i)Calculate the solubility (in moles per liter) of Zn(OH)2at 25C in a solution with a pH of9.35.(ii) At 25C, 50.0 milliliters of 0.100-molar Zn(NO3)2is mixed with 50.0 milliliters of 0.300-molar NaOH. Calculate the molar concentration of Zn2+(aq)in the resulting solution onceequilibrium has been established. Assume that volumes are additive.