阿摩線上測驗
11. A pure sample of (S)-phenylalanine has a specific rotation of +70o
. A mixture of the two enantiomers of phenylalanine
gives a specific rotation of -7.0o
. What are the percentages of the S and R enantiomers in the mixture?
(A) 75 % S, 25 % R
(B) 65 % S, 35 % R
(C) 55 % S, 45 % R
(D) 45 % S, 55 % R
(E) 35 % S, 65 % R
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統計： A(0), B(2), C(3), D(17), E(1) #943139
統計： A(0), B(2), C(3), D(17), E(1) #943139
