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e molality of lelit.

e molality of lelit.

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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Prelab Questions: 1. If 34.0 grams of NaCl are dissolved in 100 grams of water, what is the molality of the NaCl solution? 2. Derive an expression for converting (X gNaCl)/(100 grams H20) to molality. 3. A solution is prepared by dissolving 3.00 g of KNO3 in 3.50 mL of water at 23°C. The density of water at 23 °C is 0.9975415 g/mL. Calculate the molality of the solution. Assume that the addition of the salt does not change the total volume. 4. If an additional 1.00 ml of water is added to the solution described in question #3, what is the molality of the new solution. 5. Derive an algebraic expression for finding the molality from grams KNO3 (mkNo3), density of water (d), and volume of water (V). (molality = .)
Transcribed Image Text:Prelab Questions: 1. If 34.0 grams of NaCl are dissolved in 100 grams of water, what is the molality of the NaCl solution? 2. Derive an expression for converting (X gNaCl)/(100 grams H20) to molality. 3. A solution is prepared by dissolving 3.00 g of KNO3 in 3.50 mL of water at 23°C. The density of water at 23 °C is 0.9975415 g/mL. Calculate the molality of the solution. Assume that the addition of the salt does not change the total volume. 4. If an additional 1.00 ml of water is added to the solution described in question #3, what is the molality of the new solution. 5. Derive an algebraic expression for finding the molality from grams KNO3 (mkNo3), density of water (d), and volume of water (V). (molality = .)
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