Determine the midpoint of the starting and completed melting temperatures. Use those temperatures to graph the melting points of the pure compounds and the mixtures. Table view List view Table 3. Melting point analysis Start melting temp (°C) Complete melted temp (°C) Midpoint of melting temp range (°C) Pure benzoic acid 123 126 80:20 mixture 113 117 (benzoic acid:mandelic acid) 60:40 mixture 100 109 (benzoic acid:mandelic acid) 40:60 mixture 96 104 (benzoic acid:mandelic acid) 20:80 mixture 107 113 (benzoic acid:mandelic acid) Pure mandelic acid 117 124 Pure benzoic acid: Midpoint of melting temp range ("C)

You have to make a product that contains 20 doses of 2 mg/4 mL of morphine sulfate (soluble 1 in 21). Complete the working formula for this product, assuming the concentrated solution will be made in the smallest conical measure possible. Move an answer into each empty space. Ingredient morphine sulfate purified water formula quantity 2 mg to 4 mL measured quantity 25 mg x to 40 mL x concentrated solution morphine sulfate purified water 25 mg x to 5 mL x 100 mg x to 50 mL x 5 mL xaliquot of the concentrated solution will contain 25 mg x of morphine sulfate. 25 mg 30 mg 35 mg 40 mg 50 mg 100 mg 150 mg 200 mg 2 mL 4 mL 5 mL 7 mL 10 mL 15 mL 20 mL 30 mL 60 mL 70 mL 80 mL 90 mL

Part 2. Determination of the Freezing Point of an Aqueous Sugar Solution Apollo Table 2. Determination of Freezing Point of an Aqueous Sugar Solution Trial 1 2 volume d-H₂O (mL) 10.00ml Unknown Code: mass d-H₂O (g) mass d-H₂O (kg) mass unknown+boat (g) mass boat (g) mass unknown (g) freezing point (°C) ATf (°C) 10.00ml 109 10g 0.010kg 0.040kg 3.9399 3.7334 1.9479 1.7799 1.9929 1.9599 -0.1°C - 0.1°C solvent: distilled water solute: unknown sugar compound solution

Part 1. Percent Recovery.. A student starts the recrystallization of benzoic acid experiment with 0.592 g of crude material. After recrystallization they recover a sample of benzoic acid weighing 0.305 g of pure benzoic acid. The molecular weight of benzoic acid is 122.1 g/mol. Calculate the percent recovery of benzoic acid. Please show your work and round your answer to the nearest whole number.