Answer Happy

Posted: **Tue Jul 12, 2022 1:06 pm**

: Trial Trial 1 And 2 Trial 3 Trial 4 Trial 4 N A Time Sec 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 1 (154.1 KiB) Viewed 24 times

: Trial Trial 1 And 2 Trial 3 Trial 4 Trial 4 N A Time Sec 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 2 (33.66 KiB) Viewed 24 times

A.calculate the Kf for BHT from your data. B.calculate the molality of your unknown solution using your data and the Kf found in the previous question.c. calculate the molar mass of your unknown using your data and the molality of the unknown solution found in the previous question.
Trial Trial 1 and 2 Trial 3 Trial 4 Trial 4 N/A Time (sec) 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 Sample Mass of BHT Mass of dichlorobenzene Mass of BHT Mass of unknown Unknown Letter Pure BHT (°C) 90.4 77.9 77.4 76.9 74.9 72.3 70.5 68.7 67.0 66.3 67.7 68.6 68.7 68.8 68.7 68.8 68.8 68.7 68.4 68.6 68.7 68.8 68.6 68.6 68.6 68,6 68.6 68.5 68.5 68.3 68.2 Value 87.0 89.6 86.6 83.4 80.6 78.4 76.2 74.3 72.4 70.5 68.7 66.9 64.9 63.4 61.6 60.1 58.3 57.2 55.7 54.4 53.0 53.1 59.1 59.6 59.1 58.6 58.3 57.7 57.3 56.9 56.4 10.033 grams .964 10.103 .962 C BHT+ dichlorobenzene (°C) Unit grams grams grams grams BHT + unknown (°C) 42.6 83.5 81.5 79.2 76.8 74.5 72.3 70.4 68.0 66.4 64.6 63.0 61.5 59.5 58.5 62.7 63.7 63.3 63.0 62.7 62.5 62.2 61.6 61.4 61.1 60.8 60.3 59.5 58.9 58.9 58.7

Analysis #2 Melting Point Trial 1 - pure BHT Melting Point Trial 2 - pure BHT Average Melting Point Trial 1 and 2 Melting Point Trial 3 - BHT + dichlorobenzene Melting Point Trial 4 - BHT + unknown Temperature 63.4 64.3 63.86 62.1 59.9 Unit °C °C °C °C °C