Question

Freezing Point Data QUESTIONS Please answer all questions in complete sentences. Provide results in the proper number of significant digits and indicate all units. Use your graph to answer questions 1-3. 1.a. In Trial 1, what was the temperature at which the crystals first appeared? b. If you observed supercooling in Trial 2, at what value did the temperature eventually stabilize? c. Based on (a) and (b) above, what is the experimentally determined freezing point of glacial acetic acid? 2. What was the freezing point depression in acetic acid caused by the benzoic acid? Determine the answer by estimating the difference in degrees (to the nearest 0.1°C) between the flattest portions of the curves in Trial 1 and Trial 3. Mark the area on the graph with an arrow to show where the temperature difference estimate was made. 3. What is the effect of stirring on supercooling? Does it cause or prevent supercooling? Explain your answer. Note: the freezing point of glacial acetic acid is 16.5°C.

          Freezing Point Data

QUESTIONS
Please answer all questions in complete sentences. Provide results in the proper number of significant digits and indicate all units. Use your graph to answer questions 1-3.

1.a. In Trial 1, what was the temperature at which the crystals first appeared?
b. If you observed supercooling in Trial 2, at what value did the temperature eventually stabilize?
c. Based on (a) and (b) above, what is the experimentally determined freezing point of glacial acetic acid?

2. What was the freezing point depression in acetic acid caused by the benzoic acid? Determine the answer by estimating the difference in degrees (to the nearest 0.1°C) between the flattest portions of the curves in Trial 1 and Trial 3. Mark the area on the graph with an arrow to show where the temperature difference estimate was made.

3. What is the effect of stirring on supercooling? Does it cause or prevent supercooling? Explain your answer.

Note: the freezing point of glacial acetic acid is 16.5°C.

freezing point data questions please answer all questions in complete sentences provide results in the proper number of significant digits and indicate all units use your graph to answer que 85224

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