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Selective Precipitation Solutions Library

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68 solutions

Selective Precipitation

Q. A solution containing a mixture of metal cations was treated as follows.1. Dilute HCl was added and a precipitate formed. The precipitate was filte...

Solved • Mar 31, 2020

Selective Precipitation

Q. A student was given a solid containing a mixture of nitrate salts. The sample completely dissolved in water, and upon addition of dilute HCl, no pr...

Solved • Mar 30, 2020

Selective Precipitation

Q. What is the value of Q when the solution contains 2.00×10−3 M Ca2+ and 3.00×10−2M SO42−?

Solved • Mar 20, 2020

Selective Precipitation

Q. In which of the following mixtures will a precipitate form? Circle all that apply.a) 10.0 mL of 0.010 M AgNO 3 and 10.0 mL of 0.10 M Na 2SO4 (Ksp f...

Solved • Dec 19, 2019

Selective Precipitation

Q. In which solution(s) will a precipitate form? I. 0.00090 g of Na 2CrO 4 (molar mass = 162.0 g/mol) is added to 225 mL of 0.00019 M AgNO 3. Ksp Ag 2...

Solved • Dec 19, 2019

Selective Precipitation

Q. The Ksp of AgCl at 25 °C is 1.6 x 10-10. Consider a solution that is 1.0 x 10-2 M in CaCl2 and 1.0 x 10-8 M in AgNO3.

Solved • Dec 18, 2019

Selective Precipitation

Q. The Ksp of Al(OH)3 at 25 °C is 1 x 10-33. Consider a solution that is 1.0 x 10-10 M Al(NO3)3 and 2.0  10-8 M NaOH.

Solved • Dec 17, 2019

Selective Precipitation

Q. Consider these mixtures:I. 100. mL of 0.06 M Pb(NO3)2 and 50.0 mL of 0.03 M NaBrII. 100. mL of 0.08 M Pb(NO3)2 and 100.0 mL of 0.05 M NaBrThe Ksp o...

Solved • Dec 16, 2019

Selective Precipitation

Q. The Ksp of AgCl at 25 °C is 1.6 x 10-10. Consider a solution that is 1.0 x 10-2 M CaCl2 and 1.0 x 10-8 M AgNO3.

Solved • Dec 12, 2019

Selective Precipitation

Q. The Ksp of AgCl at 25 °C is 1.6 x 10-10. Consider a solution that is 1.0 x 10-1 M CaCl2 and 1.0 x 10-9 M AgNO3.

Solved • Dec 12, 2019

Selective Precipitation

Q. Part A. A solution of Na 2CO3 is added dropwise to a solution that contains 1.14 x 10 -2 M Fe2+ and 1.50 x 10-2 M Cd 2+. What concentration of CO32...

Solved • Jul 10, 2019

Selective Precipitation

Q. An insoluble salt MX has a Ksp of 1.0  10-16. Two solutions, MNO3 and NaX are mixed, to yield a final solution that is 1.0  10-8 M in M+(aq) and 1....

Solved • Jan 3, 2019

Selective Precipitation

Q. Fluoridation of drinking water is employed in many places to aid in the prevention of dental caries. Typically the F- ion concentration is adjusted...

Solved • Jan 3, 2019

Selective Precipitation

Q. A 1.0 M Na2SO4 solution is slowly added to 10.0 mL of a solution that is 0.20 M in Ca2+ and 0.30 M in Ag+.How much Na2SO4 solution must be added to...

Solved • Jan 3, 2019

Selective Precipitation

Q. A solution contains 2.1×10−4 M  Ag+ and 1.6×10−3 M  Pb2 + .Specify the concentration of I- needed to begin precipitation.

Solved • Jan 3, 2019

Selective Precipitation

Q. Will Ca(OH)2 precipitate from solution if the pH of a 6.0×10−2 M solution of CaCl2 is adjusted to 8.0?

Solved • Jan 3, 2019

Selective Precipitation

Q. A solution is 0.085 M in Pb2+ and 0.025 M in Ag+. If selective precipitation is to be achieved using NaCl, what minimum concentration of NaCl do yo...

Solved • Jan 3, 2019

Selective Precipitation

Q. A solution containing lead(II) nitrate is mixed with one containing sodium bromide to form a solution that is 0.0150 M in Pb(NO3)2 and 0.00350 M in...

Solved • Jan 3, 2019

Selective Precipitation

Q. A solution is 0.025 M in Pb2+. What minimum concentration of Cl- is required to begin to precipitate PbCl2? For PbCl2, Ksp = 1.17 x 10–5.

Solved • Jan 3, 2019

Selective Precipitation

Q. Calculate the concentration of I- in a solution obtained by shaking 0.16 M KI with an excess of AgCl(s).

Solved • Jan 3, 2019

Selective Precipitation

Q. What volume of 0.116 M sodium carbonate solution is required to precipitate 99% of the Mg from 1.00 L of 0.100 M magnesium nitrate solution?

Solved • Jan 3, 2019

Selective Precipitation

Q. Pseudogout, a condition with symptoms similar to those of gout (see previous problem), is caused by the formation of calcium diphosphate (Ca2P2O7) ...

Solved • Jan 3, 2019

Selective Precipitation

Q. Predict whether or not a precipitate will form upon mixing 75.0 mL of a NaOH solution with pOH = 2.58 with 125.0 mL of a 0.018 M MgCl2 solution. Id...

Solved • Jan 3, 2019

Selective Precipitation

Q. Potassium hydroxide is used to precipitate each of the cations from their respective solutions. Determine the minimum concentration of KOH required...

Solved • Jan 3, 2019

Selective Precipitation

Q. Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left.9.0×...

Solved • Jan 3, 2019

Selective Precipitation

Q. Consider a solution that is 1.3×10−2 M in Ba2+ and 2.0×10−2 M in Ca2+. What minimum concentration of Na2SO4 is required to cause the precipitation ...

Solved • Jan 3, 2019

Selective Precipitation

Q. A solution containing sodium fluoride is mixed with one containing calcium nitrate to form a solution that is 0.015 M in NaF and 0.010 M in Ca(NO3)...

Solved • Jan 3, 2019

Selective Precipitation

Q. Does any solid Ag2CrO4 form when 2.7×10−5 g of AgNO3 is dissolved in 15.0 mL of 4.0×10−4 M K2CrO4?

Solved • Nov 21, 2018

Selective Precipitation

Q. Does any solid Ba(IO3)2 form when 7.5 mg of BaCl2 is dissolved in 500. mL of 0.023 M NaIO3?

Solved • Nov 21, 2018

Selective Precipitation

Q. Does any solid PbCl2 form when 3.5 mg of NaCl is dissolved in 0.250 L of 0.12 M Pb(NO3)2?

Solved • Nov 21, 2018

Selective Precipitation

Q. Does any solid Cu(OH)2 form when 0.075 g of KOH is dissolved in 1.0 L of 1.0×10−3 M Cu(NO3)2?

Solved • Nov 21, 2018

Selective Precipitation

Q. A 50.0-mL sample of 0.0413 M AgNO3(aq) is added to 50.0 mL of 0.100 M NaIO 3(aq). Calculate the [Ag+] at equilibrium in the resulting solution. [K ...

Solved • Nov 12, 2018

Selective Precipitation

Q. What mass of Ca(NO3)2 must be added to 1.0 L of a 1.0-M HF solution to begin precipitation of CaF2(s)? For CaF2, Ksp = 4.0 X 10 -11 and Ka for HF =...

Solved • Nov 9, 2018

Selective Precipitation

Q. A solution is 1 X 10 -4 M in NaF, Na 2S, and Na3PO4. What would be the order of precipitation as a source of Pb2+ is added gradually to the solutio...

Solved • Nov 9, 2018

Selective Precipitation

Q. A solution contains 2.0 X 10 -3 M Ce3+ and 1.0 X 10 -2 M IO3 3-. Will Ce(IO3)3(s) precipitate? [Ksp for Ce(IO3)3 is 3.2 X 10-10.]

Solved • Nov 9, 2018

Selective Precipitation

Q. A solution is prepared by mixing 100.0 mL of 1.0 X 10 -2 M Pb(NO3)2 and 100.0 mL of 1.0 X 10-3 M NaF. Will PbF2(s) (Ksp = 4 X 10 -8) precipitate?

Solved • Nov 9, 2018

Selective Precipitation

Q. Will a precipitate form when 100.0 mL of 4.0 X 10 -4 M Mg(NO3)2 is added to 100.0 mL of 2.0 X 10 -4 M NaOH?

Solved • Nov 9, 2018

Selective Precipitation

Q. The concentration of Mg2+ in seawater is 0.052 M. At what pH will 99% of the Mg 2+ be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9 X ...

Solved • Nov 9, 2018

Selective Precipitation

Q. A solution is 0.15 M in both Pb2+ and Ag+. If Cl– is added to this solution, what is [Ag+] when PbCl2 begins to precipitate?

Solved • Nov 7, 2018

Selective Precipitation

Q. A solution is 0.010 M in both Cu2+ and Cd2+. What percentage of Cd2+ remains in the solution when 99.9% of the Cu2+ has been precipitated as CuS by...

Solved • Nov 7, 2018

Selective Precipitation

Q. Iron concentrations greater than 5.4 × 10–6 M in water used for laundry purposes can cause staining. What [OH–] is required to reduce [Fe2+] to thi...

Solved • Nov 7, 2018

Selective Precipitation

Q. What [Ag+] is required to reduce [CO32−] to 8.2 × 10–4 M by precipitation of Ag2CO3?

Solved • Nov 7, 2018

Selective Precipitation

Q. Calculate the concentration of PO43− when Ag3PO4 starts to precipitate from a solution that is 0.0125 M in Ag+.

Solved • Nov 7, 2018

Selective Precipitation

Q. Calculate the concentration of sulfate ion when BaSO4 just begins to precipitate from a solution that is 0.0758 M in Ba2+.

Solved • Nov 7, 2018

Selective Precipitation

Q. A solution is 5.0 x 10-5 M in each of these ions: Ag+, SO42-, Cl-, CO32- Which precipitate will form? (a) AgSO4 (Ksp = 1.12 x 10-5)(b) AgCl (Ksp = ...

Solved • Jul 18, 2018

Selective Precipitation

Q. When 18.0 ml of a 2.19 x10-4 M lead acetate solution is combined with 12.0 mL of a 5.60 x 104 M ammonium fluoride solution does a precipitate form?...

Solved • May 21, 2018

Selective Precipitation

Q. When 12.0 mL of a 6.38 x 10^-4 M manganese (II) sulfate solution is combined with 12.0mL of a 8.32 x 10^-4 M sodium hydroxide solution. For these c...

Solved • May 4, 2018

Selective Precipitation

Q. Sodium sulfate is slowly added to a solution containing 0.0500 M Ca  2+ (aq) and 0.0320 M Ag+(aq). a) What will be the concentration of Ca 2+(aq) w...

Solved • Apr 7, 2018

Selective Precipitation

Q. A solution is 5.0 x 10-5 M in each of these ions: Ag+ , SO42-, Cl-, CO32- Which precipitate will form?a. Ag2SO4 (Ksp = 1.12 x 10-5)b. AgCl (Ksp = 1...

Solved • Mar 30, 2018

Selective Precipitation

Q. What is the value of Q when the solution contains 2.50x103 M Mg2+ and 2.00x103 M CO32?

Solved • Mar 13, 2018

Selective Precipitation

Q. Will a precipitate form when 10 mL of 0.015 M [Hg +] and 10 mL of 0.015 M [SO 42−] are mixed? Ksp of Hg2SO4 is 6.5x10−7.a. Yes; Q = 3.4 × 10 −6 whi...

Solved • Aug 8, 2017

Selective Precipitation

Q. Give the equation for a saturated solution in comparing Q with K sp.A) Q > KspB) Q < KspC) Q = KspD) Q ≠ KspE) none of the above

Solved • Jun 16, 2017

Selective Precipitation

Q. Solutions of 0.00024 M aqueous sodium iodide and 0.0054 M aqueous lead (II) nitrate, Pb(NO3)2 are mixed together. Which of the following is the mos...

Solved • Apr 27, 2017

Selective Precipitation

Q. Consider the following Ksp values for metal sulfides:Which pair would be most difficult to separate by fractional precipitation?

Solved • Feb 16, 2017

Selective Precipitation

Q. Consider the solubility of lead (II) chloride,The equilibrium constant, Ksp, is 1.2 × 10−5. If 100 mL each of 0.02 M KCl and 0.02 M Pb(NO3)2, both ...

Solved • Feb 16, 2017

Selective Precipitation

Q. For BaCrO4 (Ksp = 1.17 × 10–10), will a precipitate of BaCrO4 form when 0.10 L of  6.0 × 10–2 M Ba(NO3)2 is added to 400 mL of 5.0 × 10–8 M Na2CrO4...

Solved • Nov 16, 2016

Selective Precipitation

Q. A solution contains 0.021 M Cl- and 0.017 M I -. A solution containing copper (I) ions is added to selectively precipitate one of the ions. At what...

Solved • Aug 29, 2016

Selective Precipitation

Q. A solution containing AgNO3 is mixed with a solution of NaCl to form a solution that is 0.10 M in AgNO3 and 0.075 M in NaCl. What will happen once ...

Solved • Aug 29, 2016

Selective Precipitation

Q. Ksp = 6.3 x 10-5 for the following hypothetical equation. Each of the following mixture is prepared with the indicated molarity of A2+ and B3- at 9...

Solved • Aug 25, 2016

Selective Precipitation

Q. Ksp for CaF2 is 3.9 × 10−11. Would a precipitate of CaF2 form if Ca(NO3)2 and NaF solutions were mixed such that [Ca2+] = 2.0 × 10−4 M, and [F−] = ...

Solved • Jul 29, 2016

Selective Precipitation

Q. What will be the result if 100 mL of 0.06 M Mg(NO 3)2 is added to 50 mL of 0.06 M Na2C2O4? Assume the reaction is taking place at 25°C. Substance ...

Solved • Apr 26, 2016

Selective Precipitation

Q. When equal volumes of each solution are mixed, which combination will produce a precipitate of PbI2? (Ksp of PbI2 = 8.5 × 10−9) (a) 2.0 × 10−3 M P...

Solved • Apr 18, 2016

Selective Precipitation

Q. Consider the relative saturation of a solution. If Q sp = Ksp, the solution is ______________; if Q sp > Ksp, the solution is ______________ , a...

Solved • Apr 15, 2016

Selective Precipitation

Q. Will a precipitate form when 10 mL of 0.015 M [Hg +] and 10 mL of 0.015 M [SO 4 2-] are mixed?  Ksp of Hg2SO4 is 6.5 x 10 -7. a. Yes; Q = 3.4 x 1...

Solved • Apr 2, 2016

Selective Precipitation

Q. Give the equation for an unsaturated solution in comparing Q with K sp. A) Q > Ksp B) Q < Ksp C) Q = Ksp D) Q ≠ Ksp E) none of the above

Solved • Feb 24, 2016

Selective Precipitation

Q. Consider a solution containing the group III cations Ni 2+ and Mn 2+ (each with a concentration of 0.10 M) is treated with thioacetamide and heated...

Solved • Feb 21, 2016

Selective Precipitation

Q. A solution contains 0.015 M Ba2+ and 0.015 Ag+ . Na2SO4 (s) is slowly added to the solution. Does silver sulfate or barium sulfate precipitate firs...

Solved • Feb 21, 2016

Selective Precipitation

Q. A solution contains 0.20 M CrO 4 2- , 0.10 M CO 3 2- , and 0.010 M Cl - . If solid AgNO3 is added slowly to the solution without changing the total...

Solved • Feb 21, 2016