A sample of benzoic acid contaminated with NaCl and sand is to be recrystallized : Compound Solubility in water at 100 degrees Celsius in g/100 mL Solubility in water at 0 degrees Celsius in g/100 mL Benzoid Acid 6.8 0.2 NaCl 39.1 35.7 Sand insoluble insoluble The sample initially contained 4.0 g of benzoic acid, 2.0 g of NaCl and 1.0 g of sand and was treated with 50 mL of boiling water, filtered by gravity and then cooled in ice to obtain a precipitate which was isolated by suction filtration. How much benzoic acid should be formed and will it be pure (in theory)? Is 50mL of water an appropriate volume for this procedure? If not, what is the minimum volume of water required? Use calculations to aid in your explanation.