EBK STUDY GUIDE TO ACCOMPANY CHEMISTRY:
7th Edition
ISBN: 9781119360889
Author: HYSLOP
Publisher: VST
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Chapter 21, Problem 5RQ
Complex Ions
Use Lewis structures to diagram the formation of
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One of the steps for refining silver involves converting silver into dicyanoargenate(I) ions: 4Ag(s) + 8CN−(aq) + O2(g) + 2H2O(l) ⟶ 4[Ag(CN)2]−(aq) + 4OH−(aq)Explain why oxygen must be present to carry out the reaction. Why does the reaction not occur as: 4Ag(s) + 8CN−(aq) ⟶ 4[Ag(CN)2−(aq)?
For [Co(NH3)6]3+ , Kf has a value of 5.00 × 1031. Calculate the concentration of free, uncomplexed Co3+ ions in a solution that contains a total of 0.160 mol/L cobalt III ions and an equilibrium concentration of 0.50 M NH3.
(a) Draw a Lewis dot and cross structure (including any lone pairs) for a NBr3
molecule and determine the shape of the molecule and number of valence
electrons.
(b)
Six ammonia ligands form a complex ion with Co²+.
What is the overall charge of the complex ion?
Write the formula for the complex ion.
What is the coordination number of the complex ion?
Explain how ammonia ligands form a complex ion with Co²+?
What is the geometry of the complex ion?
Would you expect the complex to be coloured? Explain why?
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Chapter 21 Solutions
EBK STUDY GUIDE TO ACCOMPANY CHEMISTRY:
Ch. 21 - Prob. 1PECh. 21 - Aluminum chloride crystallizes from aqueous...Ch. 21 - What is the formula of the complex ion that is...Ch. 21 - Prob. 4PECh. 21 - Prob. 5PECh. 21 - Prob. 6PECh. 21 - What is the coordination number of the metal ion...Ch. 21 - What is the coordination number of the metal ion...Ch. 21 - Prob. 9PECh. 21 - Prob. 10PE
Ch. 21 - Prob. 11PECh. 21 - Prob. 12PECh. 21 - The iron metal center in hemoglobin sits in an...Ch. 21 - Prob. 1RQCh. 21 - Prob. 2RQCh. 21 - Prob. 3RQCh. 21 - Prob. 4RQCh. 21 - Complex Ions Use Lewis structures to diagram the...Ch. 21 - Complex Ions
21.6 What must be true about the...Ch. 21 - Prob. 7RQCh. 21 - Complex Ions What is a chelate? Use Lewis...Ch. 21 - Prob. 9RQCh. 21 - Complex Ions Explain how a sale of EDTA4- can...Ch. 21 - Prob. 11RQCh. 21 - Complex Ions
21.12 The cobalt(III) ion, , forms a...Ch. 21 - Prob. 13RQCh. 21 - Complex Ions What is the chelate effect? How does...Ch. 21 - Prob. 15RQCh. 21 - Prob. 16RQCh. 21 - Prob. 17RQCh. 21 - Prob. 18RQCh. 21 - Prob. 19RQCh. 21 - Prob. 20RQCh. 21 - Prob. 21RQCh. 21 - Prob. 22RQCh. 21 - Prob. 23RQCh. 21 - Prob. 24RQCh. 21 - Coordination Number and Structure Draw (a) a...Ch. 21 - Prob. 26RQCh. 21 - Prob. 27RQCh. 21 - Prob. 28RQCh. 21 - Prob. 29RQCh. 21 - Prob. 30RQCh. 21 - Prob. 31RQCh. 21 - Bonding in Metal Complexes
21.32 On appropriate...Ch. 21 - Prob. 33RQCh. 21 - Prob. 34RQCh. 21 - Prob. 35RQCh. 21 - Prob. 36RQCh. 21 - Prob. 37RQCh. 21 - Prob. 38RQCh. 21 - Prob. 39RQCh. 21 - Prob. 40RQCh. 21 - Prob. 41RQCh. 21 - Prob. 42RQCh. 21 - Bonding in Metal Complexes What factors about the...Ch. 21 - Prob. 44RQCh. 21 - Bonding in Metal Complexes The complex [...Ch. 21 - Bonding in Metal Complexes
21.46 Consider the...Ch. 21 - Prob. 47RQCh. 21 - Prob. 48RQCh. 21 - Prob. 49RQCh. 21 - Prob. 50RQCh. 21 - Prob. 51RQCh. 21 - Biological Functions of Metals Ions
21.52 List...Ch. 21 - Prob. 53RQCh. 21 - Prob. 54RQCh. 21 - Prob. 55RQCh. 21 - Write the formula, including its correct charge,...Ch. 21 - Metal Complex Nomenclature How would the following...Ch. 21 - Metal Complex Nomenclature
21.58 How would the...Ch. 21 - Give IUPAC names for each of the following:...Ch. 21 - Prob. 60RQCh. 21 - Prob. 61RQCh. 21 - Prob. 62RQCh. 21 - Coordination Number and Structure
21.63 What is...Ch. 21 - Prob. 64RQCh. 21 - Draw a reasonable structure for (a) [ Zn(NH3)4 ]2+...Ch. 21 - Prob. 66RQCh. 21 - Prob. 67RQCh. 21 - 21.68 The following compound is called...Ch. 21 - Prob. 69RQCh. 21 - Isomers of Metal Complexes
*21.70 Below is a...Ch. 21 - Prob. 71RQCh. 21 - Prob. 72RQCh. 21 - Prob. 73RQCh. 21 - Prob. 74RQCh. 21 - Bonding in Metal Complexes
*21.75 In which complex...Ch. 21 - Prob. 76RQCh. 21 - Prob. 77RQCh. 21 - Prob. 78RQCh. 21 - Prob. 79RQCh. 21 - Prob. 80RQCh. 21 - Referring to the two ligands, A and B, described...Ch. 21 - Referring to the complexes in Problems 21.80 and...Ch. 21 - Prob. 83RQCh. 21 - Prob. 84RQCh. 21 - *21.85 Sketch the d-orbital energy level diagrams...Ch. 21 - *21.86 Sketch the d-orbital energy level diagrams...Ch. 21 - *21.87 ions can be either four coordinate or six...Ch. 21 - Prob. 88RQCh. 21 - Most of the first row transition metals form 2+...Ch. 21 - *21.90 Is the complex chiral? Illustrate your...Ch. 21 - The complex [PtCl2(NH3)2] can be obtained as two...Ch. 21 - Prob. 92RQCh. 21 - Prob. 93RQCh. 21 - The compound Cr2(NH3)3(H2O)3Cl is a neutral salt...Ch. 21 - Prob. 95RQCh. 21 - Prob. 96RQCh. 21 - Prob. 97RQCh. 21 - Prob. 98RQCh. 21 - Prob. 99RQCh. 21 - Platinum(IV) makes compounds with coordination...Ch. 21 - Prob. 101RQCh. 21 - Prob. 102RQ
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- An aqueous solution of [Rh(C2O4)3]3− is yellow. Predict the approximate wavelength and predominant color of light absorbed by the complex.arrow_forwardIdentify, based on the position in the periodic table, the actinide elements among those in the following list: Co, Cm, Cd, Ce, Cf.arrow_forwardWhat types of isomers are possible for the following compounds or complex ions? (a) K[Co(NH3)2Cl4] (b) Pt(en)Cl2 (square-planar) (c) [Co(NH3)5Cl]2+ (d) [Ru(phen)3]Cl3 (e) Na2[MnCl4] (tetrahedral) (f) [Co(NH3)5NO2)2+arrow_forward
- Cobalt(II) complex ion solution: [Co(H2O)6]+2(aq) + 4Cl-(aq) [CoCl4]-2(aq) + 6H2O(l) Pink Blue 1). When silver nitrate is added the blue color becomes pink. Why is that ? 2. When heat is added , in which direction the equilibrium will shift ? Is this reaction exothermic or endothermic ? 3.What happens when the temperature is lowered in the ice bath ?arrow_forwardIn the presence of aqueous ammonia, cobalt(III) forms the complex ion Co(NH3)63+. Determine the molar concentration of free cobalt(III) ion in solution when 0.210 mole of Co(NO3)3 is dissolved in a liter of 2.50 M aqueous ammonia.arrow_forwardA concentrated ammonia solution is added to a 0.010 M Ni(No3)2 to solution. Given the equilibrium concentration of ammonia [NH3] to is 0.20 M, determine the nickel (II) ion concentration. The formation constant Kf of the complex Ni(NH3)6^2+ + is 1.2 x 10^9. Assume the volume change from the addition of ammonia solution is negligible.[No^2+]=arrow_forward
- A complex M(SCN)2 can be produced from an aqueous equilibrium in which the M2+ ion is mixed with thiocyanate ion. A solution containing initial concentrations of M2+ and SCN− are 0.000100 M and 0.000250 M respectively has an equilibrium concentration of M(SCN)2 of 2.00 × 10−5 M.What are the equilibrium concentrations of the two starting ions and what is the value of the equilibrium constant?[M2+] = [SCN−] = Kc =arrow_forwardUse crystal field theory to explain why ionic radii of Fe2+ and Co2+ are smaller than expected.arrow_forwardConsider the two complex ions [Cu(CO)4]²+ and [CuCl]²¯. Choose the statements below that are true about this pair of complex ions. Choose all that apply. For [CuCl4]²- there is one unpaired electron. [Cu(CO)4]²+ absorbs light at a shorter wavelength than [CuCl4]²-. For [Cu(CO)4]²+ there are five unpaired electrons. [Cu(CO)4]²+ is high spin because carbon monoxide (CO) is a weak field ligand. [CuCl₂]² is high spin because chloride (CI) is a weak field ligand.arrow_forward
- Consider the equilibrium reaction below. [Cu(H₂O)6]²+ (aq) + 4 Cl (aq) light blue [CuCl4]² (aq) + 6 H₂O (1) orange A test tube contains a solution of Cu(NO3)2 which is light blue. What is the major species present in the solution responsible for the color?arrow_forwardCopper(II) ion exists in water as the [Cu(H2O)6]2+ ion. Ammonia forms stronger bonds to copper than does water and hence was able to replace the water molecules in this complex ion to form the tetrammine complex, [Cu(NH3)4]2+. What properties of a ligand make it a “strong” ligand? Use your textbook or an encyclopedia of chemistry to find an example of a ligand that would be “stronger” than ammonia and this would be able to replace ammonia from [Cu(NH3)4]2+ .arrow_forwardCo3+ ions can form complex ions with ligands F, NH3, H2O, and CN. Of the complex ions that have the highest crystal field stabilization energy is ....a. [Co(CN)6]3-b. [CoF6]3-c. [Co(H2O)6]3+d. [Co(NH3)6]3+ Ti3+ ions can form complex ions with H2O, NH3, CN, and F ligands. Of these complex ions, the largest value of 10Dq is in the ….a. [Ti(NH3)6]3+b. [Ti(H2O)6]3+c. [Ti(CN)6]3-d. [TiF6]3- Complex compound [Ru(NH3)5(NO2)]Cl will produce … ions in water..a. 3b. 6c. 7d. 2arrow_forward
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