The specific rotation of l-alanine in water (at 25°c) is -2.8. a chemist prepared a mixture of l-alanine and its enantiomer, and 3.50 g of the mixture was dissolved in 10.0 ml of water. this solution was then placed in a sample cell with a pathlength of 10.0 cm and the observed rotation was -0.14. calculate the % ee of the mixture.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.