Solutions_Manual_for_Organic_Chemistry_6th_Ed 91

Solutions_Manual_for - 5-8 2.0 g 1 ¡0 mL = 0.20 g/M 0¢ mm = d£ 5¤9 ¥74°(0.20 = 8.7° for)¦glyceraldehyde 0¥5 g I §0 mL = 0¨05

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Unformatted text preview: 5-8 2.0 g 1 ¡0 mL = 0.20 g/M ; ¡ 0¢ mm = ¡ d£ 5¤9 + ¡ ¥74° (0.20) ( ¡ ) = + 8.7° for (+ )¦glyceraldehyde 0¥5 g I §0 mL = 0¨05 g/mL ; 20 cm = 2 dm 5© ¡ 0 ª 5.0° (0¥05) (2) ¡ -50° for (ª)©epinephRine «easure using a so¬ution of about one­fou®h the concentration of the first¥ The va¬ue wil¬ be either + 45° or ¡45°, which gives the sign oF the rotation. 5 - ¡ ¡ Whether a sa¯p¬e is dextrorotatory (abbrevIateD "( +±² ) or levorotatory (abbreviated " ( ³)´µ is DeteRmined expe¶·enta¸¹y by a po¹aRimeterº Except for the £o¬ecule glycera¬dehyde» there is no direct¼ universa¹ coRre¬ation between direction of optical rotation (( +± and (½±± and designation of conFi guration (¾ and S). ¿n other words, one dextrorotatory compound mÀght have ¾ configuration whi¬e a difÁerent dextrorotatory compound Âight have s configurationà (a) Yes, both of these are deteÄned experimenta¬¹y: the (+) or (³) by the po¬aÅmeter and the s£e¬¬ by the...
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This note was uploaded on 02/27/2010 for the course CHEM 140 taught by Professor Wade during the Spring '10 term at Whitman.

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