An impure sample contains 1.01 g of impurities and 4.92 g of benzoic acid.  The impure sample is dissolved in water, then heated.  The solution is then cooled.  How many grams of benzoic acid will recrystallize when the solution has cooled? Include the unit and two decimal places in your answer. The solubilities of the impurity and benzoic acid in hot water are found as an item in the Recrystallization Experiment folder.   Solubility Data for Report Questions 10  Compound Cold Water solubility Hot Water Solubility Benzoic acid 0.42 g per 100 mL of water 5.79 g per 100 mL of water Impurity 0.61 g per 100 mL of water 4.62 g per 100 mL of water

Explain why different amounts of sugar might dissolve at different times. Consider: • which day the least sugar dissolve in which day the most sugar dissolved  • what kind of cause less sugar to dissolve on some days • what does student could do to his drink to make more sugar dissolve. be sure to consider the completeness of your response, supporting details, and accurate use of terms. Your response should be 6 to 8 complete sentences. 

Match the following terms with the deTinitions A. homogeneous mixture of solute(s) and solvent B. the amount of a substance required to form a saturated solution with a specific amount of solvent at a specified temperature v Solution v Solute v Solvent v Electrolyte v Nonelectrolyte Solubility C. a substance that dissolves in water to give a solution that does not conduct an electric current v Saturated solution D. the part of the solution that gets dissolved v Unsaturated solution E. a substance that dissolves in water to glve a solution that.conducts electric current Concentration calculation relates moles of solute to liters of solution "Like dissolves like" rule F. solute and solvent form solutlon when their polarity is siilar G.a solution that is holding all of the solute possible H. the part of the solution that does the dissalving a solution that contains less solute than a saturated solution under the existing conditions J. Molarity

How to prepare these solutions? 250.0 mL 0.125 M stock Na2S2O3 solution from Na2S2O3·5H2O crystals 250 mL 0.10 M NaOHNOTE: Use the 1.0 M NaOH prepared250.0 mL standard 2500 ppm Cu(II) stock solutiona. Weigh and dissolve appropriate amount of Cu(NO3)2·5H2O crystals in enough distilled water.