The specific rotation, [α]D for sucrose is +67. What is the observed rotation for a solution of 0.40 g of sucrose in 10 mL of water in a sample tube having a pathlength of 10 cm?
The observed rotation of a solution of 1.2 g of a compound in 10 mL of water is -5.3 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound?