13.23 The solubility of Cr(NO3)3 . 9 H2O in water is 208g per 100 of water at 15 °C. A solution of Cr(NO3)3 * 9 H20 in water at 35°C is formed by dissolving 324 g in 100 g of water. When this solution is slowly cooled to 15 °C, no precipitate forms (a) Is the solution that has cooled down to 15 °C unsaturated saturated, or supersaturated? (b) You take a metal spatula and scratch the side of the glass vessel that contains this cooled solution, and crystals start to appear. What has just happened? (c) At equilibrium, what mass of crystals do you expect to form?

13.23 The solubility of Cr(NO3)3 . 9 H2O in water is 208g per 100 of water at 15 °C. A solution of Cr(NO3)3 * 9 H20 in water at 35°C is formed by dissolving 324 g in 100 g of water. When this solution is slowly cooled to 15 °C, no precipitate forms (a) Is the solution that has cooled down to 15 °C unsaturated saturated, or supersaturated? (b) You take a metal spatula and scratch the side of the glass vessel that contains this cooled solution, and crystals start to appear. What has just happened? (c) At equilibrium, what mass of crystals do you expect to form?

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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