2. A solution of KCI is saturated at 50°C. (a) How many grams of solute are dissolved in 100 g of water? (b) What is the total mass of the solution? (c) What is the mass percent of this solution at 50°C? (d) If the solution is heated to 100°C, how much more KCI can be dissolved in the solu- tion without adding more water? (e) If the solution is saturated at 100°C and then cooled to 30°C, how many grams of solute will precipitate out?
2. A solution of KCI is saturated at 50°C. (a) How many grams of solute are dissolved in 100 g of water? (b) What is the total mass of the solution? (c) What is the mass percent of this solution at 50°C? (d) If the solution is heated to 100°C, how much more KCI can be dissolved in the solu- tion without adding more water? (e) If the solution is saturated at 100°C and then cooled to 30°C, how many grams of solute will precipitate out?
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section: Chapter Questions
Problem 106A: Which solute has the greatest effect on the boiling pointof 1.00 kg of water: 50.0 g of strontium...
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Transcribed Image Text:2. A solution of KCI is saturated at 50°C.
(a) How many grams of solute are dissolved in 100 g of water?
(b) What is the total mass of the solution?
(c) What is the mass percent of this solution at 50°C?
(d) If the solution is heated to 100°C, how much more KCI can be dissolved in the solu- tion
without adding more water?
(e) If the solution is saturated at 100°C and then cooled to 30°C, how many grams of solute
will precipitate out?
Transcribed Image Text: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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