Q. What is the percent composition of a mixture of (S)-(+)-2-butanol,[!] D/25 = +13.52º, and (R)-(-)-2-butanol,[!] D/25 = -13.52º, with a specific rotation [!] D/25 = +6.76º? (Solved)
1. 75%(R) 25%(S)
2. 25%(R) 75%(S)
3. 50%(R) 50%(S)
4. 67%(R) 33%(S)
- b. 25%(R) 75%(S)