Answer to Question #178786 in Physical Chemistry for A Hinds

Question

Silver dichromate is a sparingly soluble salt. The solubility of silver dichromate at 15^oC is 1.922 x 10^-4 M.

(a)    Write the expression for K_sp for silver dichromate.                             

(b)    Determine the K_sp for silver dichromate.                                            

(c)     What effect will the addition of silver nitrate solution have on the solubility of silver dichromate in a saturated solution? Explain your answer.

Answer 1

Ksp= [Ag²⁺][Cr2O7^2-]

Silver chromate, Ag2CrO7, a sparingly soluble compound, has a solubility product,

$Ksp = 1.2 × 10^{-12}$

Silver dichromate, Ag2CrO7

is considered insoluble in aqueous solution, which means that in aqueous solution, an equilibrium will be established between the dissolved cations and anions and the undissolved solid.