2A Sapling Learning The Ksp of PbBr2 is 6.60x10 6. What is the molar solubility

Question

2A Sapling Learning The Ksp of PbBr2 is 6.60x10 6. What is the molar solubility of PbBra in pure water? Number What is the molar solubility of PbBr2 in 0.500 MKBr solution? What is the molar solubility of PbBr2 in a 0.500 M Pb(NO32 solution? Complete the d orbital diagram for a metal in complex each of these situations. Use your completed the number of in diagrams to specify unpaired electrons. d electrons Spin state Unpaired electrons Diagram Number high Number low Number high PIC COLLAGE O Previous Give Up & View

Explanation / Answer

PbBr2 (s) = Pb2+ (aq.) + 2 Br- (aq.)

let us consider, solubility of PbBr2 is S mol/L

Then, [Pb2+] = [PbBr2] = S M

[Br-] = 2 * [PbBr2] = 2S M

Ksp = [Pb2+][Br-]2

6.60 * 10-6 = S * (2S)2

4S3 = 6.60 * 10-6

S = solublity of PbBr2 = 1.18 * 10-2 M

Case(1) In 0.500 M KBr solution

Assume the solubility of PbBr2 = S M

Then, [Pb2+] = [PbBr2] = S M

[Br-] = 2 * [PbBr2] + [KBr] = 0.500 M (approx.)

therefore,

6.60 * 10-6 = S * (0.500)2

S = solubility of PbBr2 in 0.500 M KBr solution = 2.64 * 10-5 M

Case (2) In 0.500 M Pb(NO3)2 solution

Assume the solubility of PbBr2 = S M

Then, [Pb2+] = [PbBr2] + [Pb(NO3)2 = 0.500 M (approx.)

[Br-] = 2 * [PbBr2] = 2S M

therefore,

6.60 * 10-6 = (0.500) * (2S)2

S = solubility of PbBr2 in 0.500 M Pb(NO3)2 solution = 1.82 * 10-3 M

*****

5 high spin t2g3 eg2   5

5 low spin t2g5           1

6 high spin t2g4 eg2   4

6 low spin t2g6           0

7 high spin t2g5 eg2   3

7 low spin t2g6 eg1

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.