the experiment is Separating p-Toluic Acid and p-tert-Butylphenol by Solvent (Liquid-Liquid) Extraction

1. Answer the following questions: a. What is the purpose of using sodium sulfate in organic chemistry labs? b. What is the purpose of using a rotavapor in general? c. What was the purpose of using rotavapor in the experiment shown in the video? d. What is the name of the apparatus used for the extraction? e. Complete the following acid-base reaction equations by: i. Label each reactant with its correct pK4 or pK4 value. ii. Predicting the position of equilibrium using correct reaction arrows. Hint \#1: Use the qK3 and RK6 values to accurately predict the position of equilibrium. Hint \#2: Using either a single double-headed reaction arrow, or equal sized singleheaded equilibrium arrows, or unequal sized single-headed equilibrium arrows. Hint \#3: This is a CHEM 121 and 122 skill. iii. Drawing the correct reaction products. iv. Labeling the structures as acid, base, conjugate acid and conjugate base. Reaction 1: Reaction 2