please help 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 is0.9975415 g/mL. Calculate the molality of the solution. Assume that the addition of the salt does not change the totalvolume.4.If an additional 1.00 ml of water is added to the solution described in question #3, what is the molality of the newsolution.5.Derive an algebraic expression for finding the molality from grams KNO3 (mkNO3), density of water (d), and volume ofwater (V). (molality = .)

Answered: ne molality of the

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ne molality of the

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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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Question

please help

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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