What is the specific rotation of a 15.1:84.9 mixture of cholesterol and it's enantiomer? Carry maximum number of digits to final answer then enter just the numerical value rounded to one decimal place.
pecific rotation of cholesterol is not given.
From website Specific rotation was taken
Specific Rotation: [α]25 = -34 to -38° (https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma/Product_Information_Sheet/c8667pis.pdf)
I took as [α]25 = -34°
ee of the cholesterol = 84.9 - 15.1 = 69.8 %
% ee = observed specific rotation x 100 / specific rotation of pure enantiomer
observed specific rotation = % ee x specific rotation of pure enantiomer /100
observed specific rotation = 69.8 x -34 /100 = -23.73 %
The enantiomer of cholesterol = +23.73%
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