Question

Which of the following substances has greatest solubility in water? SA CUCI, Ksp = 19x 10-7 • PbF2, Ksp = 3.6 x 10-8 Cds, Ksp - 1.0 x 10-24 SrS04, Ksp = 3.2 107 Ba(103)2, Ksp - 1.5 x 10-9

Answer 1

Solubility product (Ksp) is the product of concentration (or solubility, s) of the ions (with appropriate power) produced from the salt. * Cuc È cut + et kap a 1.9x107 S S s. Кse = [cu"] [а] - sxs = 57 = 1.9810 7 ar s = 4.3589x104) ( & + 2 Pbfz ² Pb2+ + 2f" s 25 so a sx (25) 2453 = 3.6X10-8 or Is - 2.08 x 10 3 & cas cd?" + 32 SS S a sxs = 1.08 10 24 ar s = 1024 ar s = 10-12 S s S

Ksp = sxs as = 3.2x10 7 as 25.6569x10-4 * Ba (50) Bant et 2503 Ksp sx(25) = 453 a 1,5X10-9 og stonden din endors - 7.2112 x 10 41 S 25 from pbf the above calculation we can conclude has greatest solubility in water. that