1.

The solubility for the salts of the type AB3 is given by _______________(a) (Ksp 27)^1/4(b) (Ksp/27)^1/5(c) (Ksp/27)^3/4(d) (Ksp/27)^1/4The question was posed to me in an interview for internship.I would like to ask this question from Solubility Equilibria of Sparingly Soluble Salts in chapter Equilibrium of Chemistry – Class 11

Answer»

Correct option is (d) (Ksp/27)^1/4

To elaborate: For the salt AxBy, (AxBy = xA^y+ + yB^x+), the SOLUBILITY of a sparingly SOLUBLE salt is given by x^x.y^y.s^x+y. Ksp = x^x.y^y.s^x+y, where x = 1 and y = 3; Ksp = 27S^4, by rearranging, we get solubility denoted by S as (Ksp/27)^1/4.



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