Section B- Referral Test Please answer the following questions as a replacement

Question

Section B- Referral Test Please answer the following questions as a replacement for the Term 1 summative test Submit your work as a single electronic document (combined with the Referral Practical Reports if appropriate). 1. Give the molecular formulas of the following compounds (a) Tetraammineplatinum(Il) chloride (b) Dichlorotetraaquachromium(ll) (c) Hexacyanoferrate(Il) ion 2. Draw all possible theoretical isomers for each of the following octahedral complex ions (a) [Cr(en) Cla] (en ethylenediamine) (b) [Fe(CO (NHa)al (c) [Mn(H,0)F 3. Determine the metal oxidation state, electron configuration, crystal field stabilisation energy (CFSE) and spin-only magnetic moment, stating any assumptions made, of the transition metal ions in each complex below: (a) (Cr(H,O%] (b) [Fe(CN] for an octahedral transition metal complex. 5. The reaction of [Fe(H,Ol] with 3 equivalents of NBu.CI yields the [Fe(H,O Chl. The stepwise formation constants for this reaction are: K 692,000, K2 53,700, information to determine the overall formation constant (Bs) for the reaction. 6. What is meant by the term "chelate effect"? Suggest an explanation for the chelate effect illustrating your answer with an example.

Explanation / Answer

ANSWER 1:-

Moleculer Formula of the following compounds :- (a) Tetraammineplatinum(II)chloride --> Pt•4NH3•2Cl

(b) dichlorotetraaquachromium(III) --> [CrCl2(H2O)4]

(c) hexacynoferrate(III) ion --> [C6FeN6]-3

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