Quiz 7/15
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| chirality centers to find stereoisomers | 2^chirality centers
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| stereoisomers | molecules with identical molecular formulas and connectivity but different arrangements of bonds in space
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| enantiomers | non-superimposable mirror images
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| diastereomers | some S, some R (not opposite)
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| enantiomers have | identical physical properties (mp, bp, solubility)
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| diastereomers have | different physical properties
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| optical rotation is measured using a | polarimeter
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| the polarimeter | shines plane polarized light through the molecules
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| the optical rotation is read by | looking through the measuring field, adjusting the field, and reading the scale
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| we will measure (3) | polarity, melting point, optical rotation
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| draw + menthol | dash dash thick
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| draw - menthol | thick thick dash
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| draw + neomenthol | think dash dash
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| carboxylic acids are soluble in | diethyl ether or ethyl acetate
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| R=O-OH + NaOH | R=O-O-, Na+, H2O
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| R=O-O-, Na + HCl | re-protonates
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| R2NH + HCl | R2NH2 + Cl-
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| RNH3, Cl + NaOH | deprotonates
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| Neutral was in the | organic layer
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| Acidic was in the | aqueous layer
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| draw benzoic acid |
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| draw benzophenone |
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| Rf of acid | .4
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| Rf of neutral | .6
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Created by:
melaniebeale
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