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REPORT SHEET Freezing Point Depression A. Preparation of Experimental Apparatus and Freezing Point Determination of Lauric Acid Mass of freezing point depression apparatus 78.5619 Mass of freezing point depression apparatus with lauric acid 89.371g Mass of lauric acid used 10.762g 1. 2. 3. B. Freezing Point Determination of a Lauric Acid Solution 4. Designation of unknown 5. Mass of added unknown, Exp. 3 1.0029 6. Mass of added unknown. Exp. 4 1.002.- Freezing point of lauric acid from Part A, Exp. 1 Freezing point of lauric acid from Part A, Exp. 2 Average freezing point of lauric acid Freezing point of lauric acid and unknown from Part B. Exp. 3 Freezing point of lauric acid and unknown from Part B. Exp. 4 ATr-Tomisture-Tipare Exp. 3 Exp. 4 Solution molality (show calculations) Exp. 3 Exp. 4 Moles of unknown (show calculation) Exp. 3 Exp. 4 Exp. 3 Exp. 4 Molar mass of unknown (show calculation) Average molar mass Show your calculations for the solution molality, mole of unknown, and molar mass of unknown. Hand in your cooling curves with your report sheet. Freezing Point Depression Solution of lauric acid and unknown (data are for camphor) Exp. 3 60 Time (seconds) 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 $70 600 630 660 690 720 750 780 Temperature (C) 69.4 6.3.4 600 S73 36.8 sss SIL 49.5 48.0 46S 43 0 YLO 39.2 37 S 53.0 Exp. 4 Temperature (C) 69.0 59 37 6 sy. 8. 32.6 so.6 49.1 46.6 45.7 40.9 367 25 b 337 Time (seconds) 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 570 600 630 660 690 720 750 780 36 34. 33 347 23,2 31.7 30.2 28.2 27.3 25.9 24.6 23.4 21.3 28 27s 24,3 24. 235 21.9 20.S 19.) 22.3 16.8 Freezing Point Depression Pure lauric acid Time (seconds) 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 570 600 630 660 690 Exp.1 Temperature (C) 52.8 4g. .6 46. 46.8 45.1 45.b .5 44.4 43. 43.5 43.3 43.3 43.2 420 40. Time (seconds) 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 570 600 630 660 690 720 750 780 Exp.2 Temperature (C) 67.8 613 58.6 571 57.5 55.5 53.4 54.2 522 50.1 4.3 US. 371 384 32.7 .28.2 2.4.2 23.5 35. 33.5 31. 214 .3 .) 25.6 24.5 19.7 18.0 16.8. 15. 14.6 13 12.4 720 750 780 23.1 22.3 13