What is the specific rotation of L, an enantiomer of D?
the same than D but opposite sign.
f. What is the observed rotation of 1 L of solution that contains 0,01 mole of D and 0.005 mole of L? (Assume 1 dm path length)
calculate the difference between the two enantiomers
0.01 D- 0.05 L = 0.05 M "D"
specific rotation = observed rotation/ (cell path x concentration)
cells path = 1dm (doesn't affect anything in the formula we can ignore it)
observed rotation = specific rotation D x concentration D