Exercise Precipitation titration is a volumetric method based upon the formation of slightly soluble Precipitate: AgNO3(aq) + NaCl(aq) AgCl(s) Construct a titration curve by plotting pAg vs. VAgNO3 added VAgNO3 (ml) [Ag¹] pAg* 0.0 5 10.0 15 Hints: 20 25 30 a 35 40 45 50 oo (a) Before equivalence point: d. b. 1.43 1.30 K sp [CI-] (b) At equivalence point (moles of AgNO3 = moles of NaCl): [Ag*]=√ksp (c) After the equivalence point: Ag (aq) 4.90 [CI]=[NaCl] = 7.00 e. 7.65 [Ag*] = (d) pAg = -log[Ag*] (e) Set the values of Ksp, [NaC1], VNaCI and [AgNO3] as reference cell. What is pAg at the equivalence point of titration? + Cr [AgNO3]*VA AgNO, 50+ V AgNO, (aq) [Ag] = Ksp [NaCl]*V Naci -[AgNO3]*VA AgNO V Naci+V AgNO = 1.6 10-10 titrant: AgNO3, 0.IM analyte: NaC1, 0.05M, 50 ml

Exercise Precipitation titration is a volumetric method based upon the formation of slightly soluble Precipitate: AgNO3(aq) + NaCl(aq) AgCl(s) Construct a titration curve by plotting pAg vs. VAgNO3 added VAgNO3 (ml) [Ag¹] pAg* 0.0 5 10.0 15 Hints: 20 25 30 a 35 40 45 50 oo (a) Before equivalence point: d. b. 1.43 1.30 K sp [CI-] (b) At equivalence point (moles of AgNO3 = moles of NaCl): [Ag]=√ksp (c) After the equivalence point: Ag (aq) 4.90 [CI]=[NaCl] = 7.00 e. 7.65 [Ag] = (d) pAg = -log[Ag] (e) Set the values of Ksp, [NaC1], VNaCI and [AgNO3] as reference cell. What is pAg at the equivalence point of titration? + Cr [AgNO3]VA AgNO, 50+ V AgNO, (aq) [Ag] = Ksp [NaCl]V Naci -[AgNO3]VA AgNO V Naci+V AgNO = 1.6 10-10 titrant: AgNO3, 0.IM analyte: NaC1, 0.05M, 50 ml

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter11: Solving Equilibrium Problems For Complex Systems

Section: Chapter Questions

Problem 11.16QAP

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