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(NH3),Cl, (where x and y are simple integers), and calculate its molar mass. (Assume the compound contains only one Co atom). (b) Deduce the number of chloride (CI) 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)sCl3; molar mass = 250.43 g/mol; (b) 2 Cl¯ are counter ions and one is ligand; 24. (c) [Co(NH3)sCl]Cl2 = pentaammonechlorocobalt(III) chloride)
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(NH3),Cl, (where x and y are simple integers), and calculate its molar mass. (Assume the compound contains only one Co atom). (b) Deduce the number of chloride (CI) 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)sCl3; molar mass = 250.43 g/mol; (b) 2 Cl¯ are counter ions and one is ligand; 24. (c) [Co(NH3)sCl]Cl2 = pentaammonechlorocobalt(III) chloride)
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter8: Bonding In Transition Metal Compounds And Coordination Complexes
Section: Chapter Questions
Problem 66AP
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Question
![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)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F16f65cf9-d3bb-4ef1-8d11-46be7a9043fa%2Fcaef07f6-fd49-43b6-b9f4-90b76d30375e%2Fy8r23csq_processed.png&w=3840&q=75)
Transcribed Image Text: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)
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