Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question

Hi. This question has 4 parts and I cannot find the T1 T2 and delta T too. Thanks for helping me.

Cooling curve of pure naphthalene Cooling graph of naphthalene and sulfur mixture 100 90 80 80 70 60 Freezing point 73°C 75 40 -Temperature C) 30 70 20 10 65 so 100 150 200 100 200 300 400 Time, t (second) t (s) Freezing point of pure naphthalene T1 = ......°C Freezing point of solution T2 = ....°C Freezing point of depression from graph AT = Weight of naphthalene= 5,028g Weight of Sulfur= 1,011g Ki for naphthalene= 6,8 °C/m ........ 1.Calculate the molality of the solution, m = Temperature (*C) 3. 1
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Transcribed Image Text:Cooling curve of pure naphthalene Cooling graph of naphthalene and sulfur mixture 100 90 80 80 70 60 Freezing point 73°C 75 40 -Temperature C) 30 70 20 10 65 so 100 150 200 100 200 300 400 Time, t (second) t (s) Freezing point of pure naphthalene T1 = ......°C Freezing point of solution T2 = ....°C Freezing point of depression from graph AT = Weight of naphthalene= 5,028g Weight of Sulfur= 1,011g Ki for naphthalene= 6,8 °C/m ........ 1.Calculate the molality of the solution, m = Temperature (*C) 3. 1
2.Calculate the molecular weight of sulfur by using m, Wland W2 3. The atomic weight of sulfur is 32 g'mol. By using the result from (2), write the molecular formula of sulfur as Sn. What is n? 4.The actual molecular formula of sulfur is Sg. Calculate the theoretical molecular weight of sulfur and the percent error in your experiment.
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Transcribed Image Text:2.Calculate the molecular weight of sulfur by using m, Wland W2 3. The atomic weight of sulfur is 32 g'mol. By using the result from (2), write the molecular formula of sulfur as Sn. What is n? 4.The actual molecular formula of sulfur is Sg. Calculate the theoretical molecular weight of sulfur and the percent error in your experiment.
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