Problem
1. Calculate the mole fraction, molarity, and molality of each compound in an aqueous mixture containing 4 g of ethanol, 0.6 g of chloroform, 0.1 g of benzene, and 5 × 10-7 g of hexachlorobenzene in 200 mL of water.
2. A solution of benzene in water contains 0.002 mole fraction of benzene. The total volume of the solution is 100 mL and has a density of 0.95 g/cm3. What is the molality of benzene in solution?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.