CHM135H1 Study Guide - Midterm Guide: Cubic Crystal System, Covalent Bond, Weighted Arithmetic Mean
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CHM135H1 Full Course Notes
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Lr is c, therefore volume of d is 5/3 x 21 = 35l, and volume of e is 1/3 x 21 = 7l. Fcc has larger mass by a factor of 5. Simple cubic by a factor of 6273/4443 = 2. 8. Fcc is larger due to the larger mass: answer: c. vapor pressure depends on intermolecular forces. The two solutions have vapor pressure like water, lowered by the colligative properties of the solute. Identify states on the phase diagram and it becomes clear: answer: b. Solution: use p = mrt to get molarity. 3. 78 atm/(0. 082 l atm k-1 mol-1 * 298 k), m = 0. 154 mol/l. multiplying by the total volume, 0. 154 mol/l x 0. 025l = 3. 86 x 10-3 mol. Mw of solution is given by: 1. 00 g / 3. 86 x 10-3 mol = 259. 087 g/mol. Mw can be calculated by weighted average of two components. 259. 087 g/mol = xgluc (180. 2 g/mol) + xsuc (342. 3 g/mol).
