The equilibrium constant Ka for the reaction Co(H2O)63+ (aq) + H2O (l) ---> Co(H2O)5(OH)2+ (aq) + H3O+ (aq) is 1.0x10-5 A) Calculate the pH of a 0.16 M solution of Co(H2O)63+. pH = _________ B) Will a 0.60 M solution of cobalt(II) nitrate have a higher or lower pH than a 0.60 M solution of cobalt(III) nitrate? - higher- lower- same C) Co3+ complex ions are generally low-spin cases, whereas Co2+ complex ions are generally high-spin cases. Explain. The magnitude of for complexes of the same ligand _________(increases/decreases/does not change) as the charge on the metal ion increases. If this is the situation, how many unpaired electrons are present in Co(H2O)63+and Co(H2O)5(OH)2+? Co(H2O)63+: ________ unpaired electrons Co(H2O)5(OH)2+: ________ unpaired electrons
The equilibrium constant Ka for the reaction Co(H2O)63+ (aq) + H2O (l) ---> Co(H2O)5(OH)2+ (aq) + H3O+ (aq) is 1.0x10-5 A) Calculate the pH of a 0.16 M solution of Co(H2O)63+. pH = _________ B) Will a 0.60 M solution of cobalt(II) nitrate have a higher or lower pH than a 0.60 M solution of cobalt(III) nitrate? - higher- lower- same C) Co3+ complex ions are generally low-spin cases, whereas Co2+ complex ions are generally high-spin cases. Explain. The magnitude of for complexes of the same ligand _________(increases/decreases/does not change) as the charge on the metal ion increases. If this is the situation, how many unpaired electrons are present in Co(H2O)63+and Co(H2O)5(OH)2+? Co(H2O)63+: ________ unpaired electrons Co(H2O)5(OH)2+: ________ unpaired electrons
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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The equilibrium constant Ka for the reaction
Co(H2O)63+ (aq) + H2O (l) ---> Co(H2O)5(OH)2+ (aq) + H3O+ (aq)
is 1.0x10-5
A) Calculate the pH of a 0.16 M solution of Co(H2O)63+.
pH = _________
B) Will a 0.60 M solution of cobalt(II) nitrate have a higher or lower pH than a 0.60 M solution of cobalt(III) nitrate?
- higher
- lower
- same
- lower
- same
C) Co3+ complex ions are generally low-spin cases, whereas Co2+ complex ions are generally high-spin cases. Explain.
The magnitude of for complexes of the same ligand _________(increases/decreases/does not change) as the charge on the metal ion increases.
If this is the situation, how many unpaired electrons are present in Co(H2O)63+and Co(H2O)5(OH)2+?
Co(H2O)63+: ________ unpaired electrons
Co(H2O)5(OH)2+: ________ unpaired electrons
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