Chemistry: The Science in Context (Fifth Edition)
Chemistry: The Science in Context (Fifth Edition)
5th Edition
ISBN: 9780393614046
Author: Thomas R. Gilbert, Rein V. Kirss, Natalie Foster, Stacey Lowery Bretz, Geoffrey Davies
Publisher: W. W. Norton & Company
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Chapter 22, Problem 22.19QP
Interpretation Introduction

Interpretation: The formulas for each of the given compounds are to be stated.

Concept introduction: The coordination complex consists of coordination sphere in which ligands are joined through covalent bond to the central metal ion. The oxidation state of central metal ion is satisfied by the presence of counter ions in ionization sphere.

To determine: The formulas for each of the given compounds.

Expert Solution & Answer
Check Mark

Answer to Problem 22.19QP

Solution

The formulas for each of the given compounds are rightfully stated.

Explanation of Solution

Explanation

When octahedral platinum (IV) complexes react with AgNO3(aq) the compound with general formula Pt(NH3)xCl4 is formed. The table showing the composition of complex and the number of moles of AgCl produced per mole of complex is,

CompositionNumberofmolesofAgClofcomplexproducedpermoleofcomplexaddedPt(NH3)6Cl44Pt(NH3)5Cl43Pt(NH3)4Cl42Pt(NH3)3Cl41Pt(NH3)2Cl40

The complex with composition Pt(NH3)6Cl4 is considered. It is an octahedral complex. The given complex produces 4 moles of AgCl on addition with Ag+ which indicates that there is 4 chloride ions present outside the coordination sphere of the complex. The reaction of the complex with the Ag+ ions is,

[Pt(NH3)6]Cl4+4Ag+[Pt(NH3)6]4++4AgCl

The coordination number in octahedral complex is satisfied by having six NH3 in the coordination sphere. The oxidation state of Pt(IV) is satisfied when all 4 Cl ions are in the ionization sphere. Hence, the formula of the complex is [Pt(NH3)6]Cl4 .

The complex with composition Pt(NH3)5Cl4 is considered. It is an octahedral complex. The given complex produces 3 moles of AgCl on addition with Ag+ which indicates that there is 3 chloride ions present outside the coordination sphere of the complex. The reaction of the complex with the Ag+ ions is,

[Pt(NH3)5Cl]Cl3+3Ag+[Pt(NH3)5Cl]4++3AgCl

The coordination number in octahedral complex is satisfied by having 5 NH3 and 1 chlorine in the coordination sphere. The oxidation state of Pt(IV) is satisfied when 3 Cl ions are in the ionization sphere and 1 chlorine ligand is present in the coordination sphere. Hence, the formula of the complex is [Pt(NH3)5Cl]Cl3 .

The complex with composition Pt(NH3)4Cl4 is considered. It is an octahedral complex. The given complex produces 2 moles of AgCl on addition with Ag+ which indicates that there is 2 chloride ions present outside the coordination sphere of the complex. The reaction of the complex with the Ag+ ions is,

[Pt(NH3)4Cl2]Cl2+2Ag+[Pt(NH3)4Cl2]4++2AgCl

The coordination number in octahedral complex is satisfied by having 4 NH3 and 2 chlorine in the coordination sphere. The oxidation state of Pt(IV) is satisfied when 2 Cl ions are in the ionization sphere and 2 chlorine ligands are present in the coordination sphere. Hence, the formula of the complex is [Pt(NH3)4Cl2]Cl2 .

The complex with composition Pt(NH3)3Cl4 is considered. It is an octahedral complex. The given complex produces 1 moles of AgCl on addition with Ag+ which indicates that there are 1 chlorides ions present outside the coordination sphere of the complex. The reaction of the complex with the Ag+ ions is,

[Pt(NH3)3Cl3]Cl+Ag+[Pt(NH3)3Cl3]4++AgCl

The coordination number in octahedral complex is satisfied by having 3 NH3 and 3 chlorine in the coordination sphere. The oxidation state of Pt(IV) is satisfied when 1 Cl ion is in the ionization sphere and 3 chlorine ligands are present in the coordination sphere. Hence, the formula of the complex is [Pt(NH3)3Cl3]Cl .

The complex with composition Pt(NH3)2Cl4 is considered. It is an octahedral complex. The given complex produces 0 moles of AgCl on addition with Ag+ which indicates that there is no chloride ions present outside the coordination sphere of the complex. The reaction of the complex with the Ag+ ions is,

[Pt(NH3)2Cl4]+Ag+[Pt(NH3)2Cl4]4++Ag+

The coordination number in octahedral complex is satisfied by having 2 NH3 and 4 chlorine in the coordination sphere. The oxidation state of Pt(IV) is satisfied when 4 chlorine ligands are present in the coordination sphere. Hence, the formula of the complex is [Pt(NH3)2Cl4] .

Conclusion

The formulas for each of the given compounds are,

  • [Pt(NH3)6]Cl4 .
  • [Pt(NH3)5Cl]Cl3 .
  • [Pt(NH3)4Cl2]Cl2 .
  • [Pt(NH3)3Cl3]Cl .
  • [Pt(NH3)2Cl4]

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Chapter 22 Solutions

Chemistry: The Science in Context (Fifth Edition)

Ch. 22 - Prob. 22.5VPCh. 22 - Prob. 22.6VPCh. 22 - Prob. 22.7VPCh. 22 - Prob. 22.8VPCh. 22 - Prob. 22.9VPCh. 22 - Prob. 22.10VPCh. 22 - Prob. 22.11VPCh. 22 - Prob. 22.12VPCh. 22 - Prob. 22.13QPCh. 22 - Prob. 22.14QPCh. 22 - Prob. 22.15QPCh. 22 - Prob. 22.16QPCh. 22 - Prob. 22.17QPCh. 22 - Prob. 22.18QPCh. 22 - Prob. 22.19QPCh. 22 - Prob. 22.20QPCh. 22 - Prob. 22.21QPCh. 22 - Prob. 22.22QPCh. 22 - Prob. 22.23QPCh. 22 - Prob. 22.24QPCh. 22 - Prob. 22.25QPCh. 22 - Prob. 22.26QPCh. 22 - Prob. 22.27QPCh. 22 - Prob. 22.28QPCh. 22 - Prob. 22.29QPCh. 22 - Prob. 22.30QPCh. 22 - Prob. 22.31QPCh. 22 - Prob. 22.32QPCh. 22 - Prob. 22.33QPCh. 22 - Prob. 22.34QPCh. 22 - Prob. 22.35QPCh. 22 - Prob. 22.36QPCh. 22 - Prob. 22.37QPCh. 22 - Prob. 22.38QPCh. 22 - Prob. 22.39QPCh. 22 - Prob. 22.40QPCh. 22 - Prob. 22.41QPCh. 22 - Prob. 22.42QPCh. 22 - Prob. 22.43QPCh. 22 - Prob. 22.44QPCh. 22 - Prob. 22.45QPCh. 22 - Prob. 22.46QPCh. 22 - Prob. 22.47QPCh. 22 - Prob. 22.48QPCh. 22 - Prob. 22.49QPCh. 22 - Prob. 22.50QPCh. 22 - Prob. 22.51QPCh. 22 - Prob. 22.52QPCh. 22 - Prob. 22.53QPCh. 22 - Prob. 22.54QPCh. 22 - Prob. 22.55QPCh. 22 - Prob. 22.56QPCh. 22 - Prob. 22.57QPCh. 22 - Prob. 22.58QPCh. 22 - Prob. 22.59QPCh. 22 - Prob. 22.60QPCh. 22 - Prob. 22.61QPCh. 22 - Prob. 22.62QPCh. 22 - Prob. 22.63QPCh. 22 - Prob. 22.64QPCh. 22 - Prob. 22.65QPCh. 22 - Prob. 22.66QPCh. 22 - Prob. 22.67QPCh. 22 - Prob. 22.68QPCh. 22 - Prob. 22.69QPCh. 22 - Prob. 22.70QPCh. 22 - Prob. 22.71QPCh. 22 - Prob. 22.72QPCh. 22 - Prob. 22.73QPCh. 22 - Prob. 22.74QPCh. 22 - Prob. 22.75QPCh. 22 - Prob. 22.76QPCh. 22 - Prob. 22.77QPCh. 22 - Prob. 22.78QPCh. 22 - Prob. 22.79QPCh. 22 - Prob. 22.80QPCh. 22 - Prob. 22.81QPCh. 22 - Prob. 22.82QPCh. 22 - Prob. 22.83QPCh. 22 - Prob. 22.84QPCh. 22 - Prob. 22.85QPCh. 22 - Prob. 22.86QPCh. 22 - Prob. 22.87QPCh. 22 - Prob. 22.88QPCh. 22 - Prob. 22.89APCh. 22 - Prob. 22.90APCh. 22 - Prob. 22.91APCh. 22 - Prob. 22.92APCh. 22 - Prob. 22.93APCh. 22 - Prob. 22.94APCh. 22 - Prob. 22.95APCh. 22 - Prob. 22.96AP
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