Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 19, Problem 27E
Give the coordination numbers and write the formulas for each of the following, including all isomers where appropriate:
(a) tetrahydroxozincate(ll) ion (tetrahedral).
(b) hexacyanopalladate(IV) ion.
(c) dichlomaurate(I) ion (note that aurum is Latin for "gold").
(d) diamminedichloroplatinum(Il).
(e) potassium diamminetetrachlorochromate(III).
(f) hexaamminecobalt(III) hexacyanochromate(III).
(g) dibromobis(ethylenediamine) cobalt(III) nitrate
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Give the coordination numbers and write the formulas for each of the following, including all isomers where appropriate:(a) tetrahydroxozincate(II) ion (tetrahedral)(b) hexacyanopalladate(IV) ion(c) dichloroaurate(I) ion (note that aurum is Latin for "gold")(d) diamminedichloroplatinum(II)(e) potassium diamminetetrachlorochromate(III)(f) hexaamminecobalt(III) hexacyanochromate(III)(g) dibromobis(ethylenediamine) cobalt(III) nitrate
A coordination compound has the following composition (by mass %): 23.53% Co; 42.47% Cl, and
34.00% NH3. When 4.91 g of the compound is dissolved in 75.0 mL of deionized water, and the solution
is reacted with an excess of AGNO; solution, it yields 5.60 g of AgCl precipitate.
(a) Determine the empirical formula of the compound and write in the form of Co(NH;),Cl, (where x and
24.
y
are simple integers), and calculate its molar mass. (Assume the compound contains only one Co atom).
(b) Deduce the number of chloride (Cl) as counter ions and as ligand, respectively. (c) Write the Werner's
formula of the compound and give its systematic name.
(Answers: (a) Co(NH3);C13; molar mass = 250.43 g/mol; (b) 2 Cl are counter ions and one is ligand;
(c) [Co(NH3);CI]Cl2 = pentaammonechlorocobalt(III) chloride)
(a) Predict whether the glycinate ion,
H2N-CH, COO
is a monodentate, bidentate, or tridentate ligand:
monodentate
bidentate
tridentate
(b) What experiment could you perform to test this prediction?
Dissolve a complex solid containing this ligand in water and measure how many ions are produced.
O Compare the color of a metal complex containing this ligand with that of the same metal bound to a monodentate,
bidentate, or tridentate ligand.
Perform a ligand substitution reaction to determine the stoichiometric ratio between this ligand and a metal that forms
an octahedral complex.
Look up the answer on Google.
Determine the number of unpaired electrons in a metal-complex containing this ligand using a magnetic susceptibility
balance.
Chapter 19 Solutions
Chemistry by OpenStax (2015-05-04)
Ch. 19 - Write the electron configurations far each of the...Ch. 19 - Write the electron con?gurations for each of the...Ch. 19 - Write the electron configurations for each of the...Ch. 19 - Why are the lanthanoid elements not found in...Ch. 19 - Which of the following elements is most likely to...Ch. 19 - Which of the following is the strongest oxidizing...Ch. 19 - Which of the following elements is most likely to...Ch. 19 - The following reactions all occur in a blast...Ch. 19 - Why is the formation of slag useful during the...Ch. 19 - Would you expect an aqueous manganese (VII) oxide...
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