Imagine you are an organic chemistry student who isolates a crude sample of salicylic acid following the Unit 2 experiment, and then you recrystallize that sample in an attempt to purify it. After a week of drying in the hood, you analyze the recrystallized product by melting point to determine purity. You divide the recrystallized product into two MP capillary tubes. You analyze Sample 1 first and then dispose of the tube and sample. After the MP apparatus has cooled, you then analyze Sample 2. You record the following data in your lab notebook: The reported literature value for pure salicylic acid is 159 °C. Sample 1 start - 157.5 °C Sample 1 end - 160.5 °C Sample 2 start - 157.3 °C Sample 2 end - 158.8 °C Using all these data, draw a conclusion about the purity of your sample (i.e., "it is pure" or "it is not pure") and explain or support your conclusion. Also provide any hypotheses you have regarding all of these data. Avoid phraseology/words such as "I feel." or "I believe." "probably" "perhaps" "possibly" or "maybe", and use "I think." or "it is hypothesized" instead. You must discuss all data in a congruent fashion.

Imagine you are an organic chemistry student who isolates a crude sample of salicylic acid following the Unit 2 experiment, and then you recrystallize that sample in an attempt to purify it. After a week of drying in the hood, you analyze the recrystallized product by melting point to determine purity. You divide the recrystallized product into two MP capillary tubes. You analyze Sample 1 first and then dispose of the tube and sample. After the MP apparatus has cooled, you then analyze Sample 2. You record the following data in your lab notebook: The reported literature value for pure salicylic acid is 159 °C. Sample 1 start - 157.5 °C Sample 1 end - 160.5 °C Sample 2 start - 157.3 °C Sample 2 end - 158.8 °C Using all these data, draw a conclusion about the purity of your sample (i.e., "it is pure" or "it is not pure") and explain or support your conclusion. Also provide any hypotheses you have regarding all of these data. Avoid phraseology/words such as "I feel." or "I believe." "probably" "perhaps" "possibly" or "maybe", and use "I think." or "it is hypothesized" instead. You must discuss all data in a congruent fashion.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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