The specific rotation of a pure enantiomer is +12 degrees . It is isolated frm a reaction with 20% racemisation and 80%retention . what would be its observed angle of rotation??
plzz tell also how to solve problems like these??
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2 Answers
Subhomoy Bakshi
·2010-07-23 12:32:55
20% racemised part gives 0° rotation...
80% retention provides rotation of 80% rotation for 100% pure sample i.e. +9.6°
also since enantiomers have same mass, the concentration is not affected...
thus, the angle of rotation reduces to +9.6°