Question

Calculate the solubility of BaSO4 (a) in pure water and (b) in a solution in which [SO42-) = 0.285 M. Ksp (BaSO4) = 1.1 x 10-10 Solubility in pure water = Solubility in 0.285 M ,2- - D M Submit Show Approach Show Tutor Steps

Answer 1

Solubility product ksp is defined as the product of its dissolved ion concentrations raised to the power of their stoitiometric co-efficient - An Bylo) - Ax By (az) A tyB as go Let Solubility Sonatr s hepa (as) (ys) [kop = x y z gatti

Ginoni Kep= 11X10" -SO (as) Bat 2 + 504 2 s S S 0 kep = [ Bath] [ sopa = 1.1x1010 = SXS S2 s = 1104&IOM Molar S Solubility (it is the no. of roles of a substance dissdre in of solution before Saturated son D [soa] = 0.285 Bas Bath 504 s st 0.285 - Kep= [Bath [soa = S(to 285) 11xola 0.2855 (0:2857/5) S = 3.85 XloºM Here solubility decreases due to the Common-ion effect.