9hw - Homework#9 1 The oxalate ion is a a b c d e 2 a b c d...

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Homework #9 1. The oxalate ion is a a. monodentate ligand. b. bidentate ligand. c. tridentate ligand. d. tetradentate ligand. e. will not act as a metal ligand. 2. What is the oxidation state of Cr in Cr(CO) 6 ? a. 0 b. + 1 c. + 3 d. + 6 e. –6 3. What is the chemical formula of pentaamminechloroplatinum(IV) bromide? a. [Pt(NH 3 ) 5 Cl]Br b. [Pt(NH 3 ) 5 ]ClBr c. [Pt 5 (NH 3 )Cl]Br d. [Pt(NH 3 ) 5 Cl]Br 3 e. [Pt 2 (NH 3 ) 5 Cl]Br 4. Which is the most descriptive name the following compound, [Pt(H 2 NCH 2 CH 2 NH 2 )Cl 4 ]Cl 2 a. hexachloro(ethylenediamine)platinum (IV) b. hexachloride(ethylenediamine)platinum (VI) c. tetrachloro(ethylenediamine)platinum (IV) chloride d. tetrachloro(ethylenediamine)platinum (VI) chloride e. Platinum(ethylenediamine)hexachloride 5. What is the chemical formula of potassium hexafluorocobaltate(III)? a. [CoK]F 6 b. K[CoF 6 ] c. K[CoF 6 ] 3 d. K 3 [CoF 6 ] e. K[Co 3 F 6 ]
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6. How many isomers are there of the triamminetriaquachromium (III) ion (octahedral)? a. 1 b. 2 c. 3 d. 4 e. 6 7. How many isomers are there of trisoxaltochromate (III) ion? a. 1 b. 2 c. 3 d. 4 e. 6 8. How many optical isomers are there for the square planar compound diaminedichloroplatinum (II)? a. 0 b. 1 c. 2 d. 3 e. 4 9. What can you say about the following two compounds? a. they are isomers b. they are enantiomers c. they are isomers and enantiomers d. they are the identical compounds 10. A Zn 2 + ion in a strong octahedral field will have how many unpaired electrons? a. 0 b. 2 c. 3 d. 4 e. 8
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11. A Co 2 + ion in a weak octahedral field will have how many unpaired electrons? a. 0 b. 1 c. 2 d. 3 e. 7 12. For a Mn 2 + ion the number of unpaired electrons in an octahedral compound will be a. greater in a weak field. b. greater in a strong field. c. the same in weak and strong fields.
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This note was uploaded on 04/30/2008 for the course CHEM 1411 taught by Professor Parkin during the Spring '08 term at Columbia.

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9hw - Homework#9 1 The oxalate ion is a a b c d e 2 a b c d...

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