Determining Molar Mass by Freezing Point Depression
Determining Molar Mass by Freezing Point Depression
Determining Molar Mass by Freezing Point Depression
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A.P. Chemistry<strong>Determining</strong> <strong>Molar</strong> <strong>Mass</strong> <strong>by</strong> <strong>Freezing</strong> <strong>Point</strong> <strong>Depression</strong> – Instructor VersionDataTemperaturesTime(5 points for completing pre-lab questions)(10 points for participating in lab, collecting data, and completing data tables)Trial 1(10.0 g lauric acid)Trial 2(10.0 g lauric acid +1.0 g benzoic acid)Trial 3(10.0 g lauric acid +2.0 g benzoic acid)Trial 4(10.0 g lauric acid +3.0 g benzoic acid):30 70.4 71.2 69.4 80.01:00 65.3 66.1 65.0 76.21:30 60.8 61.6 59.7 71.52:00 56.1 55.9 54.6 66.32:30 51.2 50.8 49.8 61.73:00 48.3 47.5 45.7 54.83:30 45.2 43.3 41.3 49.24:00 44.1 42.1 39.9 45.34:30 44.5 40.5 38.5 40.85:00 44.4 41.3 37.5 35.85:30 44.2 41.3 38.1 34.06:00 44.3 41.1 37.9 34.96:30 44.2 40.9 37.7 34.57:00 44.1 40.5 36.9 33.27:30 44.0 40.2 35.8 32.18:00 43.9 39.8 34.5 30.98:30 43.9 39.1 33.2 29.59:00 43.8 38.4 32.0 28.19:30 43.5 37.1 30.7 26.510:00 42.1 36.2 29.1 24.910:30 40.2 34.7 27.5 23.111:00 37.1 32.1 26.2 21.011:30 32.9 29.9 24.612:00 27.4 23.112:30 25.3 20.913:00 22.7
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