The following oxidation of benzyl alcohol to benzoic acid was performed. It was determined that 13% of the alcohol was unreacted after the reaction. What purification method would you use to best separate the two compounds?

Suppose that a chemistry student wants to separate a mixture consisting of benzoic acid, napthalene, and n-butylamine dissolved in ether. First, the student adds an aqueous solution of to the mixture and then extracts the aqueous layer to give solution A. Next, the student adds an aqueous solution of to the mixture and then extracts the aqueous layer to give solution B. The remaining organic phase of the mixture is assigned as solution C.

Which of the following gives the correct assignment of the contents of solutions A, B, and C?

When is fractional distillation used?

Recrystallization is a technique used to purify solid compounds, which involves growing crystals. The compound you are recrystallizing should have which of the following solubilities in the recrystallization solvent:?

Which of the following compounds has the highest boiling point?

A chemist carries out a reaction that generates several side products. Which of the following can she eliminate from the reaction mixture by washing with an aqueous solution of sodium hydroxide?

During fractional distillation, substances are separated according to which of the following characteristics?

Which of the following laboratory procedures could best be used to separate benzoic acid from phenol if they are both solvated in hexanes?

A reaction is run to form a compound that has a boiling point of . Assume there is 13% starting material unreacted that has a boiling point of , what is the best method to purify the product?