nectent #2 6paaeSelect the single best answer.In a group 1 analysis, a student obtained a precipitate containing both AgCl and PbCl. Which of thefollowing reagents would enable separation of AgCl(s) from PbCl2(s)?H,SNa,CO3КОНO NH3< Prev4 of 5NextMacBook Air119

The precipitate containing AgCl and PbCl2 can be separated from one another by dissolving one of…

Answered: nect ent #2 6 paae Select the single…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.26QAP

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In a titration of cyanide ion, 28.72 mL of 0.0100 M AgNO3 is added before precipitation begins. [The reaction of Ag+ with CN- goes to completion, producing the Ag(CN)2- complex. Precipitation of solid AgCN takes place when excess Ag+ is added to the solution, above the amount needed to complete the formation of Ag(CN)2-. How many grams of NaCN were in the original sample?
A 65.0-mL sample of 0.010 M Pb(NO3)2 was added to a beaker containing 40.0 mL of 0.035 M KCl. Will a precipitate form?
Assuming that no equilibria other than dissolution are involved, calculate the concentration of all solute species in each of the following solutions of salts in contact with a solution containing a common ion. Show that changes in the initial concentrations of the common ions can be neglected. (a) TlCl(s) in 1.250 M HCl. (b) PbI2(s) in 0.0355 M Cal2. (c) Ag2CrO4(s) in 0.225 L of a solution containing 0.856 g of K2CrO4. (d) Cd(OH)2(s) in a solution buffered at a pH of 10.995
Both AgCl and Agl dissolve in NH3.. (a) What mass of AgI dissolves in 1.0 L of 1.0 M NH3?. (b) VNhat mass of AgCl dissolves in 1.0 L of 1.0 M NH3?
What is [Br-] just as AgCl begins to precipitate when 1.5 M AgNO3 is slowly added to a solution containing 0.050 M Cl- and 0.050 M Br-?
The Handbook of Chemistry and Physics (http://openstaxcollege.org/l/16Handbook) gives solubilities of the following compounds in grams per 100 mL of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for each. (a) BaSeO4, 0.0118 g/100 mL. (b) Ba(BrO3)2H2O, 0.30 g/100 mL. (c) NH4MgAsO46H2O, 0.033 g/100 mL. (d) La2(MoO4)3, 0.00179 g/100 mL
A 1.0 M Na2SO4 solution is slowly added to 10.0 mL of a solutionthat is 0.20 M in Ca2 + and 0.30 M in Ag+. (a) Whichcompound will precipitate first: CaSO4(Ksp = 2.4 x 10-5)or Ag2SO4 (Ksp = 1.5 x 10-5)? (b) How much Na2SO4 solutionmust be added to initiate the precipitation?
The solubility of Ag2CrO4 (Ksp = 1.2 x 10-12) is several times greater than that of AgCl (Ksp = 1.82 x 10-10), so the red precipitate cannot form until all the chloride ions have effectively been removed from the solution. If a student uses 1 mg of K2CrO4 Aas an indicator for 100 mL of sample solution, what is the concnetrion of chloride ion in the solution when the red precipitate (Ag2CrO4) starts to form?
(a) The molar s o l u b i l it y o f PbBr2 at 25 °C i s1.0 x10-2 mol/L. Calculate Ksp. (b) If 0.0490 g of AgIO3 dissolvesper liter of solution, calculate the solubility-productconstant. (c) Calculate the pH of a saturated solution of Ca(OH)2.
(a) I f t he molar solubilit y o f CaF2 at 35 °C i s1.24 x 10-3 mol/L, what is Ksp at this temperature? (b) It isfound that 1.1 x 10-2 g SrF2 dissolves per 100 mL of aqueoussolution at 25 °C. Calculate the solubility product forSrF2. (c) The Ksp of Ba(IO3)2 at 25 °C is 6.0 x 10-10. What isthe molar solubility of Ba(IO3)2?
A solution contains 2.0 x10-4 M Ag+(aq) and1.5 x 10-3 M Pb2 + (aq). If NaI is added , wi l l AgI(Ksp = 8.3 x10-17)or PbI2 (Ksp = 7.9x 10-9) precipitatefirst? Specify the concentration of I-(aq) needed to beginprecipitation.
Will a precipitate form when 75ml of 0.20 M AgNo3 are combined with 266 mL of 0.050 M NaCl? The Ksp for AgCl=1.8 x 10^-10. ( Report Qsp)

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nect ent #2 6 paae Select the single best answer. In a group 1 analysis, a student obtained a precipitate containing both AgCl and PbCl. Which of the following reagents would enable separation of AgCl(s) from PbCl2(s)? H,S Na,CO3 КОН O NH3 < Prev 4 of 5 Next MacBook Air 119