Styrene (1.53 g, 0.011 mol) in methanol (30 mL) was added to a mixture of Hg(OAc)2 (5.30 g, 0.016 mol) in methanol (100 mL) at room temp. and stirred for 24 h. Sodium hydroxide (3.0 M, 16 mL) was added, followed by NaBH4 (0.32 g, 0.008 mol) in NaOH (3.0 M, 16 mL) at 0 °C. The precipitated Hg was removed by filtration. The product was isolated by diethyl ether extraction. After drying over Na2SO4, solvent was removed and distillation gave the product. (Adapted from: Senda, Y.; Kanto, H.; Itoh, H. J. Chem. Soc., Perkin Trans. 2 1997, 1143-1146.)

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.