In: Chemistry
1.The specific rotation, [α]D, for (-)-malic acid is -27. What is the observed rotation for a solution of 0.50 g of (-)-malic acid in 10 mL of water in a sample tube having a pathlength of 10 cm?
B) The observed rotation of a solution of 1.3 g of a compound in 10 mL of water is +11 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound?
2. The specific rotation, [α]D, for (-)-2-butanol is +14. What is the observed rotation for a solution of 3.3 g of (-)-2-butanol in 10 mL of water in a sample tube having a pathlength of 10 cm?
B) The observed rotation of a solution of 1.2 g of a compound in 10 mL of water is +0.75 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound?
3. The specific rotation, [α]D, for (-)-2-butanol is +14. What is the observed rotation for a solution of 3.3 g of (-)-2-butanol in 10 mL of water in a sample tube having a pathlength of 10 cm?
B) The observed rotation of a solution of 1.7 g of a compound in 10 mL of water is +5.8 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound?