Three bottles of aqueous solutions are discovered in an abandoned lab. The solutions are green, yellow, and purple. It is known that three complex ions of chromium (III) were commonly used in the lab: [Cr(H20)6]+3, [Cr(NH3)6]+3, and [Cr(H20)4C\2]+. Determine the likely identity of each of the colored solutions

) For each compound, identify as high or low spin and specify the number of unpaired electrons: Na2[Fe(CO)4)] (iii) [Ni(NH3)4(H2O)2](NO3)2 Pt(NH3)4](ClO4)2 (iv) NH4[Cr(H2O)6](SO4)2

Q/ Calculate the oxidation state of Lead in [Pb(SC(NH₂)2}6](NO3)2] ? and Calculate the molecular weight of the complex ?

Drawing an isomer of a metal complex Here is an isomer of the [FeBr₂Cl₂ (OH)]³ complex: OH Cl Cl 3- Br Fe Cl Br Draw another isomer below. []¯ ☑

Write the chemical formula of the following complex ions. formula name 0 hexafluorocobaltate(III) dicyanoaurate (1) П tetrachlorozincate(II) X Ś ?

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?

Part III: Complex lons Co(H₂O)6²+ (aq) + 4Cl¯(aq) = CoCl4²(aq) + 6H₂O dark pink dark purple light pink Ble light pink Use the color of solution to identify which complex ion (Co(H₂O)²+ or CoCl42) was present after: Adding 6 M HCI Adding water Heating the solution Cooling the solution Color of CoCl₂ 6H₂O crystals Color of solution after adding 6 M HCI Color of solution after adding water Color of hot solution Color of cooled solution Fill in or circle your answer: Reaction 7 shifts Reaction 7 shifts when HCI is added because in hot water and shifts Reaction 7 Reaction 7 is exothermic/endothermic. increases/decreases. in cold water.

Cr(aq) + 3 e Cr(s) Zn²(aq) + 2 e → Zn(s) 2 H₂O() +2 e → H₂(g) + 2 OH(aq) Mn2(aq) + 2 e A(an) + 3 e Mn(s) Al(s) 7. All of the following statements concerning ligand field theory are true EXCEPT A. in low-spin complexes, electrons are concentrated in the day, dys, and dr orbitals. B. in an isolated atom or ion, the five d orbitals have identical energy. C. low-spin complexes contain the maximum number of unpaired electrons. D. the crystal field splitting is larger in low-spin complexes than high-spin complexes. E. the energy difference between d orbitals often corresponds to an energy of visible light. 8. All of the following complexes will be colored (in the visible) EXCEPT A. [Co(en)]2+ B. [Fe(CN)6] C. [Ni(H₂O)]²+ D. [Cd(NH3)4]2+ 9. A positron has a mass number of a(n) a. 0; 1+; proton b. 1; 2+; proton c. 0; 1+; electron d. 1; 2+; electron e. 0; 0; proton -0.76 -0.83 -1.18 -1.66 a. [Cr(CO)6]C13 b. [Cu(OH)4(NH3)2] c. K4[Mn(CN)6] d. [Pt(en)3] (NO3)4 e. [Pt(NH3)2(OH₂)CIJ3PO4 10. In which…

The coordination complex, [Fe(CN)5(NO)]2, displays linkage isomerism. Draw the structural formula of the complex ion for each of the linkage isomers. Explicitly draw all H atoms. Do not include charges. Non-bonding electrons will be ignored. Do not include counter-ions, e.g., Na", T, in your answer. Separate structures with + signs from the drop- down menu. Treat "NO" as the NOt ion.