Skip to main content
Pearson+ LogoPearson+ Logo
Ch.17 - Applications of Aqueous Equilibria
Back
Previous problem
Next problem
All textbooksMcMurry 8th EditionCh.17 - Applications of Aqueous EquilibriaProblem 137

Chapter 17, Problem 137

Give a method for seperating the following pairs of ions by the addition of no more than two substances. (a) Hg2+ and Co2+

Verified Solution
Video duration:
52s
This video solution was recommended by our tutors as helpful for the problem above.
302
views
Was this helpful?

Video transcript

Hello everyone today. We have the following question provide a method for separating zinc two plus and potassium ions present in a solution by adding only one or two substances. So based on the qualitative analysis of the separation of metal can't eons, these are metals and their carry ons because they have a positive charge. To separate these two, we need to add hydrogen sulfide and ammonia. And in doing this we are going to precipitate zinc sulfide and so this is going to be our final answer. Overall, I hope this helped and until next time.
Previous problemNext problem
Related Practice
Textbook Question
Can Fe2+ be separated from Sn2+ by bubbling H2S through a 0.3 M HCl solution that contains 0.01 M Fe2+ and 0.01 M Sn2+? A saturated solution of H2S has [H2S] ≈ 0.10 M. Values of Kspa are 6 x 10^2 for FeS andd 1 x 10^-5 for SnS.
271
views
Textbook Question
Will FeS precipitate in a solution that is 0.10 M in Fe(NO3)2, 0.4 M in HCl, and 0.10 M in H2S? Will FeS precipitate if the pH of the solution is adjusted to pH 8 with an NH4+ - NH3 buffer? Kspa = 6 x 10^2 for FeS.
469
views
Textbook Question
Using the qualitative analysis flowchart in Figure 17.18

, tell how you could separate the following pairs of ions. (a) Ag+ and Cu2+
538
views
Textbook Question
Assume that you have three white solids: NaCl, KCl, and MgCl2. What tests could you do to tell which is which?
361
views
Textbook Question
In quantitative analysis, Ag+, Hg2+, and Pb2+ are seperated from other cations by the addition of HCl. Calculate the concentration of Cl-ions required to just begin the precipitation of (a) AgCl, (b) Hg2Cl2, (c) PbCl2 in a solution hav-ing metal-ion concentrations of 0.030 M. What fraction of the Pb2+ remains in solution when the Ag+ just begins to precipitate?
1492
views
Textbook Question
Write the expression for the solubility product constant of MgF2 (see Problem 4.139). If [Mg2+] = 2.6 * 10-4 mol/L in a solution, what is the value of Ksp?
487
views