( +)-Tartaric acid as a specific rotation of Calculate the specific rotation of a mixture of 68% ( +)-tartaric acid and 32% ( -)-tartaric acid.
Step 1 of 3
Here we have to calculate the specific rotation of the mixture (+)(-)tartaric acid
Specific rotation of mixture of (+)(-)tartaric acid is = +12.0o
32% of the mixture i.e (-) tartaric acid will cancel the optical rotation of the 32% of the mixture that is (+)tartaric acid
Thus the amount of excess +tartaric acid left = d-l
---------100% = 68-32/68+32 = 36% d+l
The specific rotation of will therefore be only 36% of the rotation of pure (+)tartaric acid
(+12.0o)36% = +4.3o
Thus the specific rotation of the mixture is +4.3o
Textbook: Organic Chemistry
Author: L.G. Wade Jr
The full step-by-step solution to problem: 33SP from chapter: 5 was answered by , our top Chemistry solution expert on 05/06/17, 06:41PM. This full solution covers the following key subjects: acid, tartaric, Rotation, specific, calculate. This expansive textbook survival guide covers 25 chapters, and 1336 solutions. The answer to “( +)-Tartaric acid as a specific rotation of Calculate the specific rotation of a mixture of 68% ( +)-tartaric acid and 32% ( -)-tartaric acid.” is broken down into a number of easy to follow steps, and 25 words. This textbook survival guide was created for the textbook: Organic Chemistry, edition: 8. Organic Chemistry was written by and is associated to the ISBN: 9780321768414. Since the solution to 33SP from 5 chapter was answered, more than 906 students have viewed the full step-by-step answer.