(a) What is the percentage by mass of NaCl in a saturated solution of sodium chloride at50°C?(b) Calculate the solubility of potassium bromide at 23°C. Hint: Assume that the solubilityincreases by an equal amount for each degree between 20°C and 30°C.(c) A saturated solution of barium chloride at 30°C contains 150 g water. How much additionalbarium chloride can be dissolved by heating this solution to 60°C? Temperature Effect on Solubility of Four Salts in Water, g solute/100 g water0°C10°C | 20°C | 30°C40°C50°C60°C70°C80°C | 90°C 100°CKCI27.6 31.034.037.040.042.645.548.351.154.055.6NaCl35.7 35.836.036.336.637.037.337.838.439.039.8KBr53.559.565.270.675.580.285.590.095.099.2104.0BaCl, 31.6 33.3ВаCl, |35.738.240.743.646.649.452.655.758.8

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(a) What is the percentage by mass of NaCl in a saturated solution of sodium chloride at 50°C?

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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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

(a) What is the percentage by mass of NaCl in a saturated solution of sodium chloride at
50°C?
(b) Calculate the solubility of potassium bromide at 23°C. Hint: Assume that the solubility
increases by an equal amount for each degree between 20°C and 30°C.
(c) A saturated solution of barium chloride at 30°C contains 150 g water. How much additional
barium chloride can be dissolved by heating this solution to 60°C?

Temperature Effect on Solubility of Four Salts in Water, g solute/100 g water
0°C
10°C | 20°C | 30°C
40°C
50°C
60°C
70°C
80°C | 90°C 100°C
KCI
27.6 31.0
34.0
37.0
40.0
42.6
45.5
48.3
51.1
54.0
55.6
NaCl
35.7 35.8
36.0
36.3
36.6
37.0
37.3
37.8
38.4
39.0
39.8
KBr
53.5
59.5
65.2
70.6
75.5
80.2
85.5
90.0
95.0
99.2
104.0
BaCl, 31.6 33.3
ВаCl, |
35.7
38.2
40.7
43.6
46.6
49.4
52.6
55.7
58.8

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