Question

Select the THREE answers that are correct concerning a saturated solution of PbCl2. PbCl2(s) Pb+2(aq) + 2Cl-(aq) The system is in equilibrium. The rate of dissolving is equal to the rate of recrystallization. The concentration of PbCl2 is greater than normal. The concentration of the products only is used to determine the Ksp.

Answer 1

The system is in equilibrium. -True
The rate of dissolving is equal to the rate of recrystallization. -True
The concentration of PbCl 2 is greater than normal. -False
The product [Pb 2+ ][Cl - ] 2 equals Ksp . -True

Answer 2

Given:

The dissociation of Lead Sulfate in a solution (PbCl2):

PbCl2 (s) ----> Pb 2+ (aq) + 2Cl - (aq)

Out of all the statements, the correct statement is "ONLY the concentrations of the products are used to determine the Ksp".