MATH 222 : 2007 winter answers.pdf
11 Oct 2012
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Please circle the name of your instructor: adley, doan, behar, haniff, bui, di stefano, m kinen, munera, vukadin. Please ensure that you have a complete set: calculators may not be shared. Programmable calculators are not permitted: no books or extra paper are permitted. Avogadro"s number na = 6. 022 x 1023 mol 1. Gas constant r = 0. 08206 l(cid:1)atm(cid:1)k 1(cid:1)mol 1 = 8. 314 kpa l(cid:1)k 1(cid:1)mol 1. 1 atm = 760 mm hg = 101. 3 kpa = 760 torr. 1. (a) predict the solubility of the following species in water. Ammonium carbonate is a salt which dissolves well in water due to hydrogen bonding with water which can solvate the. Ethanol dissolves well in water since both substances are capable of hydrogen bonding: ch2cl2 (methylene chloride) Although methylene chloride has some polarity (i. e. , dipole moment), it does not dissolve in water, as there are different intermolecular forces of attraction in methylene chloride than there are in water.
