90. Consider two redox pairs (1) Cr(II)/Ru(III) (2) Cr(II)/Co(III) The rate of acceleration in going from a outer-sphere to a inner-sphere mechanism is lower for (1) relative to (2). Its correct explanation is: (a) HOMO/LUMO are o* and o* respectively. (b) HOMO/LUMO are o* and respectively. (c) HOMO/LUMO are ï* and o* respectively. (d) HOMO/LUMO are * and * respectively.

90. Consider two redox pairs (1) Cr(II)/Ru(III) (2) Cr(II)/Co(III) The rate of acceleration in going from a outer-sphere to a inner-sphere mechanism is lower for (1) relative to (2). Its correct explanation is: (a) HOMO/LUMO are o* and o* respectively. (b) HOMO/LUMO are o* and respectively. (c) HOMO/LUMO are ï* and o* respectively. (d) HOMO/LUMO are * and * respectively.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter19: Complex Ions

Section: Chapter Questions

Problem 16QAP: Vitamin B12 is a coordination compound with cobalt as its central atom. It contains 4.4% cobalt by...

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Similar questions

The incorporation compound Na2 [Ni (CN) 4] is given. a) What is the name of this association? b) Knowing that the compound is transmagnetic, what structure do you expect the ion complex to have?
Vitamin B12 is a coordination compound with cobalt as its central atom. It contains 4.4% cobalt by mass and has a molar mass of 1.3103 g/mol. How many cobalt atoms are in a molecule of vitamin B12?
An aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for 1.90 hours. The electroplating is carried out with an efficiency of 95.0%, resulting in a deposit of 2.850 g of vanadium. a How many faradays are required to deposit the vanadium? b What is the charge on the vanadium ions (based on your calculations)?
Hemoglobin (Hb) can form a complex with both O2 and CO. For the reaction HbO2(aq) + CO(g) HbCO(aq) + O2(g) at body temperature, K is about 200. If the ratio [HbCO]/[HbO2) comes close to 1, death is probable. What partial pressure of CO in the air is likely to be fatal? Assume the partial pressure of O2 is 0.20 atm.
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.
Its magnetic moment is 4.0 B.M. Are the Co-O bond lengths the same in the six-coordinated [Co(H2O)6]2+ complex? Let's explain why.
Write a complete and balanced redox equation for the synthesis of the coordinationcompound. Use iron(II) oxalate (the yellow/orange solid) as a reactant. In other words,complete the following reaction: FeC2O4(s) + H2O2(aq) + ??? → product(s) Assume that the net reaction occurs in an acidic solution: this will make balancing theequation easier. Use the formula of the iron (III) oxalate compound that you found in theliterature to balance the equation ([Fe(C2O4)3]). You must write out the individual half-reactions.
Oxyhemoglobin, with an O2 bound to iron, is a low-spin Fe(II) complex; deoxyhemoglobin, without the O2 molecule, is a high-spin complex. A 15-minute exposure to air containing 400 ppm of CO causes about 10% of the hemoglobin in the blood to be converted into the carbon monoxide complex,called carboxyhemoglobin. What does this suggest about the relative equilibrium constants for binding of carbon monoxide and O2 to hemoglobin?
Which antioxidant complex formed by Cu(I)-Nc chelate makes it possible to determine its lower concentrations?
The Ksp for SrF2 is 2.8 × 10–9 . What mass of SrF2 will dissolve in 5.00 × 102 L of an aqueous solution?
6. The reaction of [Co(NH3)4Cl2]+ with H2O is 103 times faster than the reaction of [Co(NH3)5Cl]2+. By considering how the charge on a complex affects bond strengths,discuss briefly whether this data is consistent with a Id or Ia mechanism
Explain the following: (i) Copper (I) ion is not stable in an aqueous solution. (ii) With same (d4) configuration Cr(II) is reducing, whereas Mn(III) is oxidising. (iii) Transition metals in general act as good catalysts.

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