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Chapter 21: Problem 84

Name the following coordination compounds. a. \(\mathrm{Na}_{4}\left[\mathrm{Ni}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]\) b. \(\mathrm{K}_{2}\left[\mathrm{CoCl}_{4}\right]\) c. \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{SO}_{4}\) d. \(\left[\mathrm{Co}(\mathrm{en})_{2}(\mathrm{SCN}) \mathrm{Cl}\right] \mathrm{Cl}\)

Short Answer

Expert verified
a. Tetrakis(oxalato)nickelate(II) sodium b. Potassium tetrachlorocobaltate(II) c. Tetraamminecopper(II) sulfate d. Pentaamminethiocyanato-魏N-chlorocobalt(III) chloride

Step by step solution

01

Identify the central metal ion

Find the metal atom in each coordination complex as it will be the central metal ion. a. Ni (Nickel) b. Co (Cobalt) c. Cu (Copper) d. Co (Cobalt)
02

Identify the ligands

Determine the ligands surrounding the central metal ion in each coordination complex. a. \(C_{2}O_{4}\) (Oxalate) b. Cl (Chloride) c. \(NH_{3}\) (Ammine) d. en (Ethylenediamine), SCN (Thiocyanate), Cl (Chloride)
03

Determine the charge on the coordination complex

Calculate the overall charge on each coordination complex. a. Charge on \(Na_{4}\) = +4, therefore charge on the complex = -4 b. Charge on \(K_{2}\) = +2, therefore charge on the complex = -2 c. Charge on \(SO_{4}\) = -2, therefore charge on the complex = +2 d. Charge on \(Cl\) = -1, therefore charge on the complex = +1
04

Name the coordination complex using the standard nomenclature rules

Name each coordination complex following IUPAC nomenclature rules. a. Tetrakis(oxalato)nickelate(II) sodium b. Potassium tetrachlorocobaltate(II) c. Tetraamminecopper(II) sulfate d. Pentaamminethiocyanato-魏N-chlorocobalt(III) chloride So, the names of the coordination complexes are: a. Tetrakis(oxalato)nickelate(II) sodium b. Potassium tetrachlorocobaltate(II) c. Tetraamminecopper(II) sulfate d. Pentaamminethiocyanato-魏N-chlorocobalt(III) chloride

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Most popular questions from this chapter

Use standard reduction potentials to calculate \(\mathscr{E}^{\circ}, \Delta G^{\circ}\), and \(K\) (at \(298 \mathrm{~K}\) ) for the reaction that is used in production of gold: $$2 \mathrm{Au}(\mathrm{CN})_{2}^{-}(a q)+\mathrm{Zn}(s) \longrightarrow 2 \mathrm{Au}(s)+\mathrm{Zn}(\mathrm{CN})_{4}^{2-}(a q)$$ The relevant half-reactions are $$\begin{aligned}\mathrm{Au}(\mathrm{CN})_{2}^{-}+\mathrm{e}^{-} \longrightarrow \mathrm{Au}+2 \mathrm{CN}^{-} & \mathscr{C}^{\circ} &=-0.60 \mathrm{~V} \\ \mathrm{Zn}(\mathrm{CN})_{4}^{2-}+2 \mathrm{e}^{-} \longrightarrow \mathrm{Zn}+4 \mathrm{CN}^{-} & \mathscr{E}^{\circ} &=-1.26 \mathrm{~V} \end{aligned}$$

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