When Pb(OH)2(s) and Bi(OH)3(s) co-precipitate, the mixture can be separated by subjecting the solids to a source of OH– ions. Which statement best describes the reason this strategy enables a separation between the two solids?
| A. |
Bi3+ is a strong acid |
|
| B. |
Pb2+ is a strong base |
|
| C. |
only Pb(OH)2 forms a hydroxo complex |
|
| D. |
only Bi(OH)3 forms an ammine complex |
C option is correct because as we go left to right basic character decrease and and top to bottom bismuth hydroxide is not stable
When Pb(OH)2(s) and Bi(OH)3(s) co-precipitate, the mixture can be separated by subjecting the solids to a...
3. Pb(OH)2 (8) is amphoteric and forms the complex ion Pb(OH)/(aq) with excess OH in solution. Write the balanced equilibrium equation of Pb(OH)2 (s) in the presence of excess hydroxide. 4. A solution contains Pb(NO3)2 and Zn(NO3)2. Consult the solubility table and answer the following questions: a. NaOH (aq) is added to the solution. What precipitate (or precipitates) forms? b. Can you separate the two metal ions using NaOH? c. Nat (aq) is added to the solution. What precipitate (or...
I concluded that my unknown was Pb2+. since yellow
precipitate formed. can you help me answer the questions for the
Known and unknown report
Qualitative Analysis: Group I Cations 10 ORECTIVES A Leam some chemistry of Group I cations, R Analyze an unknown for Group I cations. THEORY AND DISCUSSION Group I cations are precipitated as insoluble chlorides: Ag, Pb, Hg2 +Cr-AgCl, PbCh, HgCla The colors of the following species will be helpful in the analysis for Group I cations....
Why wouldnt a weak base, such as NH3, work just as well as KOH
in (1)?
2.2 Is the question I have. I figured out
2.1 already.
Below is relevant info. Thanks!
2. (1) Describe how adding a solution of KOH to the original sulfide precipitate results in the separa- tion of Sn4+ ion from the other Group W cations. (2) Why wouldn't a weak base, such as aque- ous NH3, work just as well as aqueous KOH in (1)?...
Model I: The Dissolution of Magnesium Hydroxide in Water When solid Mg(OH)2 dissolves in water, the chemical reaction is: Mg(OH)2(s) Mg2+(aq) + 2OH-(aq) (1) Table I. These are the results after equilibrium has been established for the addition of solid Mg(OH)2(s) to water yielding a final volume of 10.0 L of solution. Total amount of Mg(OH)2 added Mg2+ concentration in the resulting solution at eq OH- concentration in the resulting solution at eq Mass of Mg(OH)2 that does not dissolve...
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...