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A student performing this experiment followed all procedures carefully and correctly. The student observed a melting point of 128.5-131.0 °C for urea and melting point of 205.5-211.5 °C for anthracene. What should the student conclude? A. The thermometer is defective and should be replaced. B. That all future melting point data should be corrected by subtracting 6 °C from the observed melting point. OC. That the standards are impure and the experiment should be repeated with fresh standards. D. That all future melting point data should be corrected by adding 6 °C to the observed melting point.

A student performing this experiment followed all procedures carefully and correctly. The student observed a melting point of 128.5-131.0 °C for urea and melting point of 205.5-211.5 °C for anthracene. What should the student conclude? A. The thermometer is defective and should be replaced. B. That all future melting point data should be corrected by subtracting 6 °C from the observed melting point. OC. That the standards are impure and the experiment should be repeated with fresh standards. D. That all future melting point data should be corrected by adding 6 °C to the observed melting point.

Chemistry
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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A student performing this experiment followed all procedures carefully and correctly. The student observed a melting point of 128.5-131.0 °C for urea and melting point of 205.5-211.5 °C for anthracene. What should the student conclude? A. The thermometer is defective and should be replaced. B. That all future melting point data should be corrected by subtracting 6 °C from the observed melting point. OC. That the standards are impure and the experiment should be repeated with fresh standards. D. That all future melting point data should be corrected by adding 6 °C to the observed melting point.
Transcribed Image Text:A student performing this experiment followed all procedures carefully and correctly. The student observed a melting point of 128.5-131.0 °C for urea and melting point of 205.5-211.5 °C for anthracene. What should the student conclude? A. The thermometer is defective and should be replaced. B. That all future melting point data should be corrected by subtracting 6 °C from the observed melting point. OC. That the standards are impure and the experiment should be repeated with fresh standards. D. That all future melting point data should be corrected by adding 6 °C to the observed melting point.
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