A. (1) How many mL of boiling water are required to dissolve 28.00g of phthalic acid? (2) If the solution were cooled to 14 deg C, how many grams of phtahlic acid would crystallize out?
B. What is the reason for using activated carbon during a recrystallization?
C. Why is gravity filtration and not suction filtration used to remove insoluble suspended impurities and charcoal from a hot solution?
D. While performing a vacuum filtration on a Hirsch funnel to collect the crystallized phthalic acid, you find that most of your solid is stuck to the walls of the tube or flask in which it has been cooled and crystallized. (1) Can you rinse the container with some liquid to get the solid out and onto the Hirsch funnel? If so, what liquid specifically?
(2) Explain WHY this liquid.