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Unformatted text preview: soluble and the other insoluble. Since the salt formed between R-PSA and L-Proline is soluble, we know that it will dissolve, and it is present in the liquid filtrate. 2. The composition of a mixture of known optically active substances can be calculated from its specific rotation using the following equation: [ ] = [ ] A X A + [ ] B X B [ ] = Specific rotation of the mixture [ ] A = Specific rotation of component A X A = Mole fraction of component A X B = Mole fraction of component B Calculate the percentage of -D-glucose in a mixture of -D-glucose [ ] = +112 and -D-glucose [ ] = +18.7 that has a specific rotation of +52.7 . (Hint: X A + X B = 1)...
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This note was uploaded on 05/02/2008 for the course CHE 1121L taught by Professor Ishwar during the Spring '08 term at St. Johns Duplicate.
- Spring '08