Chemistry (Question - 5)==================I have needed solution of Question - 2. Don't need to solve the Question - 1. 22. (1) A solution contains 0.15 mol LPb and 0.20 mol L Ag". If solid Na,SO, is very slowly added tothis solution, which will precipitate first, PbSO, or Ag,SO,?(2) The addition of Na,SO, is continued until the second cation just starts to precipitate as the sulfate. What isthe concentration of the first cation at this point? K, for PbSO, = 1.3 x 10°, Ag,SO,= 1.2 x 10.

PbSO4 is a binary salt, therefore, its Ksp = 1s2 Or 1.3 x10-8 = 1s2 Or s = √1.3 x10-8 =1.14 x 10-4…

(2) The addition of Na,SO, is continued until the second cation just starts to precipitate as the sulfate. What is the concentration of the first cation at this point? K for PbSO, 1.3 x 10, Ag,SO,= 1.2 x 10. -8

(2) The addition of Na,SO, is continued until the second cation just starts to precipitate as the sulfate. What is the concentration of the first cation at this point? K for PbSO, 1.3 x 10, Ag,SO,= 1.2 x 10. -8

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter15: Complex Ion And Precipitation Equilibria

Section: Chapter Questions

Problem 61QAP

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Chemistry (Question - 5)

==================

I have needed solution of Question - 2. Don't need to solve the Question - 1.

22. (1) A solution contains 0.15 mol LPb and 0.20 mol L Ag". If solid Na,SO, is very slowly added to
this solution, which will precipitate first, PbSO, or Ag,SO,?
(2) The addition of Na,SO, is continued until the second cation just starts to precipitate as the sulfate. What is
the concentration of the first cation at this point? K, for PbSO, = 1.3 x 10°, Ag,SO,= 1.2 x 10.

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