Answer Happy

B. Molal Freezing Point Constant of Cyclohexane Trial 1 Trial 2 Trial 3 0.6 Mass of weighing paper and naphthalene, 8 0701 0.705 Mass of weighing paper, 8 0.563 0.560 g 0738 38.235 0 144 38.695 38.634 0.590 0.095 38.532 38. 276 36.808 Mass of naphthalene, 8 Mass of cyclohexane. Trof naphthalene-cyclohexane solution, "C Molality of cyclobexane solution Freezing point depression (AT). "C Freezing point depression constant, K Average value of K/ 4.0

Molar Mass Determination by Depression of the Freezing Point C. The Molar Mass of an Unknown Solid Trial 1 Trial 2 Trial 3 #2 38.16 38. COZ 31 457 30.83 38.190 0.823 0.724 0. Unknown Number Mass of test tube, stopper and cyclohexane, 8 Mass of test tube and stopper, 8 Mass of cyclohexane, g Mass of weighing paper and unknown sample, 8 Mass of weighing paper, 8 Mass of unknown sample, 8 Ty of unknown-cyclohexane solution, "C Freezing point depression (AT), 'C Molality of unknown-cyclohexane solution Molar mass of unknown, g mol-! Average value of molar mass, g mol-1 38. 602 0.753 0.637 0.116 0.592 0.99 0.122 4.93 5.00 4.90 Sample Calculations

Narner asion of the Freezing Point Solid Trial 2 Trial 3 Trial 1 #2 30.190 út, ở 38. 602 31 457 30.8> 7.302 7.145 0.753 7789 0.715 mple, 8 OP 23 0.724 0.6037 0-592 ७.04 0-116 0.122 5-1 4.6 5.00 4.90 4.6 4.93 16.899 3.833 20.154 4.031 3.451 12 197 2.489

DUO 40 41 40 Name Chanc de Gala Section le by Depression of the Freezing Point Application of the rules for significant digits, and use correct units be Freering Point of Cyclohexane Trial 2 Trial Teil 3 38.32 38-235 and cyclohexane 31.264 70 80 eper, 3.15 31.457 7.243 1.10 7. 218 1.549 633 6.79 7.93 ane, "C Constant of Cyclohexane Trial 1 Trial 2 0701 0.705 naphthalene, 8 O13 0560 g Trial 3 0.10 0.590 0.015 7.268 65 0738 D144 7.243 ane solution, 7349 6.4 6 147 0.39 D.CO2 ution 0.29 (AT). "C constant, 155 O29 1.971 16219 2003 0.352