Question 32 A student adds 1 mL of oil to 5 mL of distilled water in a test tube labelled X which is stoppered and shaken for 10 seconds and allowed to settle. The experiment is repeated, in a second test tube labelled Y. In addition to the oil and water, 5 drops of soap solution is added before the test tube is shaken. (a) Compare the appearance of the mixtures in test tubes X and Y after they have been shaken and allowed to settle for 10 seconds. (b) Explain how the molecular structure of soap can account for the changes in appearance of the mixtures described in part (a). (c) Assess the suitability of soaps in cases where hard water (containing dissolved salts) is present.

Question 32 A student adds 1 mL of oil to 5 mL of distilled water in a test tube labelled X which is stoppered and shaken for 10 seconds and allowed to settle. The experiment is repeated, in a second test tube labelled Y. In addition to the oil and water, 5 drops of soap solution is added before the test tube is shaken. (a) Compare the appearance of the mixtures in test tubes X and Y after they have been shaken and allowed to settle for 10 seconds. (b) Explain how the molecular structure of soap can account for the changes in appearance of the mixtures described in part (a). (c) Assess the suitability of soaps in cases where hard water (containing dissolved salts) is present.

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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