3 4 You are studying coordination compounds of Cu(II with carbonate and other ligands. You add excess aqueous Na₂CO to 20.5 mL of 0.505 M aqueous CuSO. You observe a color change from deep blue to teal and the formation of 0.229 g CO₂. You isolate and dry a precipitate, with a mass of 1.163 grams. You hypothesize that the new compound is made up of copper(II) ligated to HO, and CO₂². How many grams of copper are contained in 8.15 grams of the compound? 2- 3

The complex ion Fe(CN)6³ is paramagnetic with one unpaired electron. The complex ion Fe(SCN)6³ has five unpaired electrons. Draw the crystal field diagrams of two complex ions. Which compound absorbs light with the shorter wavelength? Where does SCN- lie in the spectrochemical series relative to CN-? (hint: stronger or weaker 4. (a) (b) (c) field)

a) Consider the following two cobalt complexes: [Co(H2O)2(OH)4] Complex A [Co(CO)6] 3+ Complex B (i) Draw the d-electron configuration for A and B. Label each set of orbitals. (ii) Explain how the d-electron configuration changes when cobalt is replaced by iridium in A and B. (iii) Calculate the CFSE for A and B. Show all calculations and units. (iv) Which of these two complexes (A or B) will interact with a magnet? Motivate your answer.

ose the false statement about isomerism in metal complexes. a) Enantiomers are non-superimposable mirror images, cis and trans isomers rotate the plane of polarization of plane-polarized light. c) it is possible for an octahedral coordination compound of formula M(NH3)5CIBr to have ionization isomers, aka coordination isomers. Linkage isomerism can occur in complexes with nitrite (NO2-) as a ligand. tion 14 ch of the following properties differ i

Balance this equation and balanced reaction equation and the quantities included in the procedure to calculate the theoretical yield of K[Cr(C2O4)2(H2O)2]·2H2O.

A) Using a cobalt (III) ion as the central metal atom, and with chloride ions (Cl-) and ammonia (NH3) molecules as the ligands, draw both isomers of the coordination complex that will exhibit fac/mer isomerism. B) Using a platinum (II) ion as the central metal atom, with chloride ions and ammonia molecules as the ligands, draw both isomers of the coordination complex that will exhibit cis/trans isomerism. Platinum (II) forms four coordinate bonds.

When the copper (II) sulphate solution is reacted with a bidentate ligand such as ethylenediamine (en), the same thing would have happened. However, since one bidentate ligand has two donor atoms (Brown et al, 2017), each Cu2+ ion would only have 3 ligands at most, instead of 6 when reacted with monodentate ligands. The equation of the reaction is as follows: [Cu(H2O)6]2+(aq) + 3en(aq) → [Cu(en)3](aq) + 6H2O(ℓ)   a. How do we know how many ligands can enter? b. Explain briefly the discussion above.

The pentacarbonyl metal, M(CO)5 complex, has two geometrical structures: trigonal bipyramidal or square pyramidal. Experimentally, it was found that the Ru(CO)5 complex show two stretching CO bands in the IR and three bands in the Raman region. According to these information, what would be the expected structure for Ru(CO)5?

A compound formula with brackets is called a coordination complex, and the structure looks like a covalent compound with a transition metal central atom. The bonding that happens is often a hybrid of covalent and metallic bonding.   One method of extracting silver from mined ore is by using a complex, K[Ag(CN)2], to make the silver soluble in water. The complex is then isolated to recover the silver using the following chemical equation.   2 K[Ag(CN)2] (aq) + Zn (s) → 2 Ag (s) + Zn(CN)2 (aq) + 2 KCN (aq)  a.) 5.00 L of 1.25 M K[Ag(CN)2] is mixed with 215.5 g of zinc. Identify the limiting reactant and determine how many grams of silver are produced.  b.) The quality control chemists at the mine record collecting 672.4 g of silver. What is the yield of this reaction?

Given the coordination compound Na4[Fe(ONO)2(ox)2].- What is the type of hybridization of the central metal in the complex ion? - Considering the geometry and the ligand field strength of the complex anion, show how the five d orbitals split and how the d electrons are distributed in these orbitals. Label each d orbital (e.g. dxy).