This image shows how nicotine (black) interacts with a relevant components of which are shown in green and blue. wwNH A H₂C N HN B с N... H HN H... 'N OG m N Interaction A is best described as ✓ [Select] ion-ion hydrogen bonding dipole-dipole ion-dipole Interaction B is best described as Interaction C is best described a neurotransmitter protein, the most

12. Which of the following liquids has the weakest IMFA? O CH:OH О нс O CS2 H20

Illustrate all the locations where 2-methylocta-4,6-dien-1-amine could form hydrogen bonds with water either as a hydrogen donor or as a target (receiver) of hydrogen bonds from water. Do this by drawing bent water molecules as necessary and representing hydrogen bonds between water and the molecule using dashed lines. Be sure it is clear exactly which atoms on each molecule are involved in the hydrogen bonds.  If it is not capable of forming hydrogen bonds with water explain why not.

a) Succinimide is an organic compound used in manysyntheses as a building block and is related to a class of drugs known asanticonvulsants. Given the following solubility of succinimide in water andmethanol, which would be a better solvent for recrystallizing succinimide?Solubility data: 1 gram of succinimide is soluble in 5 mL of cold water, 3 mL ofwater at room temperature and 0.7 mL of boiling water. 1 gram of succinimide issoluble in 30 mL of cold methanol, 24 mL of room temperature methanol and 5mL of hot methanol. Show calculations.b) A researcher wanted to purify 0.4 grams of crude succinimide viarecrystallization using only 2 mL of solvent. Decide the best solvent to use (water or methanol) to show the maximum % recovery of the researcher. The best solvent chosen here, may differ from the one chosen in part a. PLEASE show calculations for both parts as proof.

Chlorhexidine gluconate is available in different products in concentrations of 4% w/vand 0.12% w/v. H ow many milliliters of the more dilute product may be prepared fromeach fluidounce of the more concentrated product?