Indicate whether the following would increase or decrease the solubility of copper(II) hydroxide. It may help...
Indicate whether the following would increase
or decrease the solubility of copper(II)
hydroxide.
It may help to know that copper(II) ion forms a complex ion with
ammonia:
Cu2+ (aq) + 4 NH3 (aq) ⇌
Cu(NH3)42+ (aq).
- adding 50.0 mL of a solution of 0.25 M sulfuric acid
- adding 50.0 mL of a solution of 6.0 M ammonia
Homework Answers
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Indicate whether the following would increase
or decrease the solubility of copper(II)
hydroxide.
It may help...
Consider the insoluble compound copper(II) hydroxide , Cu(OH)2 . The copper(II) ion also forms a complex...
Consider the insoluble compound copper(II) hydroxide , Cu(OH)2 .
The copper(II) ion also forms a complex with ammonia . Write a
balanced net ionic equation to show why the solubility of Cu(OH)2
(s) increases in the presence of ammonia and calculate the
equilibrium constant for this reaction. For Cu(NH3)42+ , Kf =
6.8×1012 . Use the pull-down boxes to specify states such as (aq)
or (s). + + K = Submit Answer
Voit needed for this question. Consider the insoluble...
Copper hydroxide dissolves in water according to the following equation. It is only very slightly soluble....
Copper hydroxide dissolves in water according to the following equation. It is only very slightly soluble. Cu(OH)2(s) Cu2+(aq) + 2OH- (aq) a. Explain how the solubility can be increased by adding HCl to the solution. b. Explain how the concentration of copper (II) ion or of hydroxide ion can be reduced in the solution so that more of the solid copper hydroxide can be dissolved
A-Calculate the molar solubility of MgF2 in 0.14 M MgCl2 at 25 ∘C. B-In an excess...
A-Calculate the molar solubility of MgF2 in 0.14 M MgCl2 at 25 ∘C. B-In an excess of NH3(aq), Cu2+ ion forms a deep blue complex ion, Cu(NH3)42+, which has a formation constant Kf=5.6×1011. Calculate the concentration of Cu2+ in a solution prepared by adding 4.7×10−3mol of CuSO4 to 0.460 L of 0.37 M NH3. Express your answer using two significant figures.
I am sort of confused on what these are asking? An explination of the concepts would really help, I will give thumbs up...
I am sort of confused on what these are asking? An explination
of the concepts would really help, I will give thumbs up :)
3. Consider the following reactions: a) The formation of tetraaqua copper (Il) ion in solution Cu2+ + 4H2O(l) = [Cu(H2O)4](aq) b) The reaction of ammonia with water. NH3(aq) + H2O(l) = NH4+ (aq) + OH(aq) c) The self ionization of water 2H2O(0) — H3O*(aq) + OH(aq) d) The formation of copper (II) hydroxide [Cu(H20)4]2+ (aq) +...
26. The solubility of CaF? would acidic. A a, increase b. decrease fone made the solution...
26. The solubility of CaF? would acidic. A a, increase b. decrease fone made the solution more one made the C/ stay the same if one added NaCN to the 27. The solubility of Cu(OH)2 would solution. a increase b. decrease c. stay the same 28. CN, NH3, and some other compounds and ions will bind to transition metal ions and make them more soluble. The cyanide is acting like a a. Bronsted acid b. Bronsted base c. Lewis acid...
A) Consider the insoluble compound cobalt(II) hydroxide , Co(OH)2. The cobalt(II) ion also forms a complex...
A) Consider the insoluble compound cobalt(II) hydroxide , Co(OH)2. The cobalt(II) ion also forms a complex with ammonia . Write a balanced net ionic equation to show why the solubility of Co(OH)2(s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction. For Co(NH3)62+, Kf = 7.7×104. Use the pull-down boxes to specify states such as (aq) or (s). _____ + _____ = _____ + _____ K = B) Consider the insoluble compound nickel(II) carbonate ,...
40. Concentrated aqueous ammonia is added to a solution of copper(II) sulfate. A white precipitate forms....
40. Concentrated aqueous ammonia is added to a solution of copper(II) sulfate. A white precipitate forms. The precipitate dissolves as more ammonia is added, generating an intensely blue solution. Which combination of net ionic equations, in the appropriate order, describes this chemistry?! I Cu?* (aq) + 2OH(aq) Cu(OH)2 (19) II Cu?" (aq) + 2OH(aq) = Cu(OH)2 (8) III Cu(OH)(aq) + 4 NH, (aq) Cu(NH3),?* () + 2OH(aq) IV Cu(OH)2 (8) + 4NH, (aq) Cu(NH3)*(14) + 2OH(aq) V NH3(aq) + H20...
please i need help with these questions. thanks Solid ammonium phosphate is slowly added to 175...
please i need help with these questions. thanks
Solid ammonium phosphate is slowly added to 175 mL of a 0.0654 M zinc acetate solution. The concentration of phosphate ion required to just initiate precipitation is M. Submit Answer Retry Entire Group 4 more group attempts remaining Use the References to access important values if needed for this question. Solid copper(II) acetate is slowly added to 50.0 ml of a 0.0575 M potassium sulfide solution. The concentration of copper(II)ion required to...
A) Consider the insoluble compound zinc hydroxide, Zn(OH)2. The zinc ion also forms a complex with...
A) Consider the insoluble compound zinc hydroxide, Zn(OH)2. The zinc ion also forms a complex with ammonia. Write a balanced net ionic equation to show why the solubility of Zn(OH)2(s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction. For Zn(NH3)42+, Kf = 2.9×109. Specify states such as (aq) or (s) and provide K. K = ______ B) Consider the insoluble compound nickel(II) hydroxide, Ni(OH)2. The nickel ion also forms a complex with cyanide ions....
Questions 1-5 For #1 - #5 questions of Exp. 16, complete the following chemical reaction equations...
Questions 1-5
For #1 - #5 questions of Exp. 16, complete the following chemical reaction equations (1 point each). For example, Ag+ (aq) + Cl - (aq) + AgCl (s, I white) 1. For another example, silver precipitation, AgCl (s), reacts with 15 M ammonia aqueous solution. Complete this chemical reaction equation. AgCl (s) + 2NH3 (aq) → Ag(NH3)2 + (aq) + Cl(aq) 2. The silver complex ion, one of the products from above chemical reaction equation, reacts with 6...
Consider the insoluble compound copper(II) hydroxide , Cu(OH)2 .
The copper(II) ion also forms a complex with ammonia . Write a
balanced net ionic equation to show why the solubility of Cu(OH)2
(s) increases in the presence of ammonia and calculate the
equilibrium constant for this reaction. For Cu(NH3)42+ , Kf =
6.8×1012 . Use the pull-down boxes to specify states such as (aq)
or (s). + + K = Submit Answer
Voit needed for this question. Consider the insoluble...
I am sort of confused on what these are asking? An explination
of the concepts would really help, I will give thumbs up :)
3. Consider the following reactions: a) The formation of tetraaqua copper (Il) ion in solution Cu2+ + 4H2O(l) = [Cu(H2O)4](aq) b) The reaction of ammonia with water. NH3(aq) + H2O(l) = NH4+ (aq) + OH(aq) c) The self ionization of water 2H2O(0) — H3O*(aq) + OH(aq) d) The formation of copper (II) hydroxide [Cu(H20)4]2+ (aq) +...
26. The solubility of CaF? would acidic. A a, increase b. decrease fone made the solution more one made the C/ stay the same if one added NaCN to the 27. The solubility of Cu(OH)2 would solution. a increase b. decrease c. stay the same 28. CN, NH3, and some other compounds and ions will bind to transition metal ions and make them more soluble. The cyanide is acting like a a. Bronsted acid b. Bronsted base c. Lewis acid...
40. Concentrated aqueous ammonia is added to a solution of copper(II) sulfate. A white precipitate forms. The precipitate dissolves as more ammonia is added, generating an intensely blue solution. Which combination of net ionic equations, in the appropriate order, describes this chemistry?! I Cu?* (aq) + 2OH(aq) Cu(OH)2 (19) II Cu?" (aq) + 2OH(aq) = Cu(OH)2 (8) III Cu(OH)(aq) + 4 NH, (aq) Cu(NH3),?* () + 2OH(aq) IV Cu(OH)2 (8) + 4NH, (aq) Cu(NH3)*(14) + 2OH(aq) V NH3(aq) + H20...
please i need help with these questions. thanks
Solid ammonium phosphate is slowly added to 175 mL of a 0.0654 M zinc acetate solution. The concentration of phosphate ion required to just initiate precipitation is M. Submit Answer Retry Entire Group 4 more group attempts remaining Use the References to access important values if needed for this question. Solid copper(II) acetate is slowly added to 50.0 ml of a 0.0575 M potassium sulfide solution. The concentration of copper(II)ion required to...
Questions 1-5
For #1 - #5 questions of Exp. 16, complete the following chemical reaction equations (1 point each). For example, Ag+ (aq) + Cl - (aq) + AgCl (s, I white) 1. For another example, silver precipitation, AgCl (s), reacts with 15 M ammonia aqueous solution. Complete this chemical reaction equation. AgCl (s) + 2NH3 (aq) → Ag(NH3)2 + (aq) + Cl(aq) 2. The silver complex ion, one of the products from above chemical reaction equation, reacts with 6...
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