5. (a) Predict the electron transfer products of the reaction between [Fe(H2O)6]²+ and [Co(NH3)5(NCS)]. (2 marks) (b) Write the electron transfer mechanism and identify the rate determining step of the above reaction in part (a). (c) (7+2 marks) Deduce if the products obtained in part (a) after the electron transfer are labile or inert. (6 marks)

5. (a) Predict the electron transfer products of the reaction between [Fe(H2O)6]²+ and [Co(NH3)5(NCS)]. (2 marks) (b) Write the electron transfer mechanism and identify the rate determining step of the above reaction in part (a). (c) (7+2 marks) Deduce if the products obtained in part (a) after the electron transfer are labile or inert. (6 marks)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter21: Transition Metals And Coordination Chemistry

Section: Chapter Questions

Problem 6Q: Four different octahedral chromium coordination compounds exist that all have the same oxidation...

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Similar questions

Four different octahedral chromium coordination compounds exist that all have the same oxidation state for chromium and have H2O and Cl as the ligands and counterions. When 1 mole of each of the four compounds is dissolved in water, how many moles of silver chloride will precipitate upon addition of excess AgNO3?
What type of isomerism is shown by [CO(NH3)5ONO]Cl2? (ii) On the basis of crystal field theory, write the electronic configuration for d4 ion if A0 < P. (iii) Write the hybridization and shape of [Fe(CN)6]3-. (Atomic number of Fe — 26)
State a reason for each of the following situations: (i) Co2+ is easily oxidised to Co3+ in presence of a strong ligand. (ii) CO is a stronger complexing reagent than NH3. (iii) The molecular shape of Ni(CO)4 is not the same as that of [Ni(CN)4]2_.
The photographs below (a) show what occurs when a solution of iron(III) nitrate istreated with a few drops of aqueous potassium thiocyanate. The nearly colorlessiron(III) ion is converted to a red [Fe(H2O)5SCN)2+ion. (This is a classic test for thepresence of iron(III) ions in solution.)[Fe(H2O)6]3+(aq) + SCN−(aq) ⇄ [Fe(H2O)5SCN]2+(aq) + H2O(ℓ)(a) As more KSCN is added to the solution, the color becomes even more red.Explain this observation.(b) Silver ions form a white precipitate with SCN−ions. What would you observeon adding a few drops of aqueous silver nitrate to a red solution of [Fe(H2O)5 Explain your observations?
What should happen when the concentration of chloride is increased in a solution containing hexaaquocobalt(II), [Co(H2O)6] 2+ (aq)?
Give the number of d electrons (n of dn) for the central metal ion in (a) [Cr(H2O)6](ClO3)2; (b) [Mn(CN)6]2-; (c) [Ru(NO)(en)2Cl]Br.
4. Consider the following reaction: [ZnCl4]² +4 OH → [Zn(OH)4]² +4 CI If the reaction is spontaneous, then which of the following is true? (A) Chloride is a more labile ligand than hydroxide in zinc complexes (B) Hydroxide is a more labile ligand than chloride in zinc complexes (C) Chloride is a more inert ligand than hydroxide in zinc complexes (D) Hydroxide and chloride are equally labile in zinc complexes
Describe the state of hypridisation , shape and the magnetic behavior of the following complexes : (a) K[Cr(C2O4)2(H2O)2] (b) [Co(NH3)2(en)2 ]+3
The self exchange electron-transfer reaction between [Co(en)3]3+ and [Co(en)3]2+ is rather slow. Explain this observation on the basis of d-orbital occupations.
(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? i. ii. iii. iv. V. vi.
For any of the following that can exist as isomers, state the type of isomerism and draw the structures:(a) [Co(NH3)5Cl]Br2 (b) [Pt(CH3NH2)3Cl]Br(c) [Fe(H2O)4(NH3)2]2+
(a) Predict the structures of platinum-containing products A and B in the following reactions and explain your answers: (i) [Pt(PR3)4]²+ + Cl¯ → A (ii) A+ Cl → B (b) The complex [Fe(SCN) (H₂O)]²+ was detected as an intermediate of the reaction between [Co(NH3) 5(NCS)]²+ and [Fe(H₂O)]2+ in water, which ultimately produces [Fe(H₂O)6]³+ and [Co(H₂O)6]2+. What kind of reaction occurs? Propose the mechanism of this reaction by writing the reaction steps involved.