8. An aqueous solution of pure stereoisomer X has a known
concentration of 0.40 g/mL and had an observed rotation
of -35° in a 1.0 dm tube at 589.6 nm (sodium D line) and
25°C. What do you calculate its $[\alpha]_D$ value to be at this
temperature?
9. For the following molecules please identify the chiral
centers as R or S and state the relationship between them
(i.e. are they enantiomers, diastereomers, constitutional
isomers, or the same compound?).
H
H
Br
H
Br
Cl
H
Cl