Question 10 [time = 10 minutes] a) Consider the following reaction: [M(OH₂)6]²+ +L→ [M(L)(OH₂)4]²+ + 2H₂O where Mhigh spin Co(II) or Ni(II) or Mn(II) or Fe(II) and L= a charge neutral bidentate igand. Jse the Irving-Williams series to match the following formation constants with the metal ion. Kr=log 5.7; Kr=log 3.0; Kr-log 7.3; Kr= log 4.0 b) The following stability constants (log K) refer to a single metal ion, 'M', forming complexes with different halides. Use the data below to classify 'M' as a hard, soft or intermediate 'acid' and justify your answer: log K (MF3) = 6.0; log K (MC13) = 1.0; log K (MBrs) = 0.2. Page 11 of 20 CHEM20018 Reactions and Synthesis c) Consider the ligand substitution reaction below where an aqua ligand is exchanged for either L¹, L² or L³. Experiments show that the mechanism of these reactions is Interchange Associative (I). List the ligands in the order of their reactions rates (fastest to slowest). 7²+ 2+ HN HN N H₂ NH₂ +L¹-→ OH₂ NH₂ L1-3 H + H₂O

Question 10 [time = 10 minutes] a) Consider the following reaction: [M(OH₂)6]²+ +L→ [M(L)(OH₂)4]²+ + 2H₂O where Mhigh spin Co(II) or Ni(II) or Mn(II) or Fe(II) and L= a charge neutral bidentate igand. Jse the Irving-Williams series to match the following formation constants with the metal ion. Kr=log 5.7; Kr=log 3.0; Kr-log 7.3; Kr= log 4.0 b) The following stability constants (log K) refer to a single metal ion, 'M', forming complexes with different halides. Use the data below to classify 'M' as a hard, soft or intermediate 'acid' and justify your answer: log K (MF3) = 6.0; log K (MC13) = 1.0; log K (MBrs) = 0.2. Page 11 of 20 CHEM20018 Reactions and Synthesis c) Consider the ligand substitution reaction below where an aqua ligand is exchanged for either L¹, L² or L³. Experiments show that the mechanism of these reactions is Interchange Associative (I). List the ligands in the order of their reactions rates (fastest to slowest). 7²+ 2+ HN HN N H₂ NH₂ +L¹-→ OH₂ NH₂ L1-3 H + H₂O

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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