Enter the molar solubility of lead (II) phosphate, given that the Ksp is 3.0E-44

Question

Enter the molar solubility of lead (II) phosphate, given that the Ksp is 3.0E-44. Enter your answer in scientific notation using and E for the "times ten to the". Enter your answer to three sig figs. Leave off the unit. Enter the molar solubility of aluminum hydroxide, given that the Ksp is 1.9E-33. Enter your answer in scientific notation using and E for the "times ten to the". Enter your answer to three sig figs. Leave off the unit. Enter the molar solubility of silver chromate, given that the Ksp is 9.0E-12. Enter your answer in scientific notation using and E for the "times ten to the". Enter your answer to three sig figs. Leave off the unit.

Explanation / Answer

Q.3 - Ksp Pb3(PO4)2 = [Pb2+]^3.[PO4^3-]^2

let x amount of salt is in solution

3 x 10^-44 = (3x)^3.(2x)^2

x = 7.74 x 10^-10 M is the molar solubility

Q.4 - Ksp for Al(OH)3 = [Al3=][OH-]^3

let x amount of salt is in solution

1.9 x 10^-33 = (x)(3x)^3

x = 2.90 x 10^-9 M is the molar solubility

Q.5 - Ksp for Ag2CrO4 = [Ag+]^2.[CrO4^2-]

let x amount of salt is in solution

9 x 10^-12 = (2x)^2(x)

x = 1.31 x 10^-4 M is the molar solubility

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