practice midterm

practice midterm - 1. Circle the choice or choices within...

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-1- 1. Circle the choice or choices within the brackets which complete the below statements correctly. (20 points) The ethanoate anion (CH 3 CO 2 ) is [ more basic than / less basic than / about equally basic to ] the ethoxide anion (CH 3 CH 2 O ). Chloroacetic acid would be expected to have a p K a value [ greater than 5 / less than 5 / about 5 ]. In accordance with their biosynthetic origin, fatty acids consist mostly of [ even / odd ] numbered carbon chains. The carboxylate salts of such acids may be called [ amphiphiles / ylides / soaps / surfactants / alkanoates ]. The combination of 1 mole of acetyl chloride with 1 mole of methyl amine would be expected to give [ 0.5 mole of N -methylacetamide / 1 mole of N -methylacetamide / 0.5 moles of methylammonium chloride / 1 mole of methylammonium chloride / 2 moles of methylammonium chloride / no reaction ]. The 13 C chemical shift of methyl amine would be expected to be [ upfield / downfield / about the same as ] that of methanol. The most characteristic spectroscopic feature of primary and secondary amines is [
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This note was uploaded on 01/31/2011 for the course CHE 118c taught by Professor Nasiri during the Spring '08 term at UC Davis.

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practice midterm - 1. Circle the choice or choices within...

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