Question

Part A A saturated solution of barium fluoride, BaF2, was prepared by dissolving solid BaF2 in water. The concentration of Ba2+ ion in the solution was found to be 7.52�10^?3M . Calculate Ksp for BaF2.

Part B The value of Ksp for silver carbonate, Ag2CO3, is 8.10�10?12. Calculate the solubility of Ag2CO3 in grams per liter.

Answer 1

Part A The dissociati on of BaF, is follows Let the molar solubity (m olar concentrati on) of BaF2 is s Therefore, the concentrati on of ions are as follows Calculate the Kp of BaF, (s) as follows Given that [Ba2*-s-7.52x10-3 M Substitute the value of s in the above equation to get Kp as follows K 4(7.52x103) -1,70x10- Part B The dissociati on of AgzCO3 is foll ows: Ag,CO32 Ag*+Co3 Lets be the mol ar solubity of Ag^CO3 Therefore, the H, is as follows 8.10x10--4s3 8.10×10-12 13 4 -1.27 x104 M Therefore, the solubity of Ag CO3 1.27x104 mol/L Therefore, the solubil ty (in g/L)-127x10 mol 3.49x102 g/L