Ch.12 - SolutionsWorksheetSee all chapters
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Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Solubilities of some ionic compounds in water as a function of temperature.How does the solubility of KCl at 80 oC compare with that of NaCl at the same temperature?

Problem

Graph has temperature in C on x axis. Solubility (grams salt in 100 grams H2O) is on y axis. NaNO3 has solubility of 73 g at 0 C, 80 at 10, 88 at 20, and 96 at 30. Hereafter grams soluble will be listed in temperature increments of 10 staring at 0.  CaCl2 has a solubility of 59, 62 and 75. Pb(NO3)2 has a solubility of 36, 46, 56, 66,  76, 86, and 96. NaCl has a solubility of 33 g, 35, 35, 36, 36, 37, 38, 39, 39, 40 and 40. KNO3 has a solubility of 13 g, 20, 30, 45, 64 and 90. KCl has a solubility of 27 g, 30, 32, 35, 40, 42, 46, 47, 51, 55 and 57. K2Cr2O7 has a solubility of 7 g, 8, 10, 17, 22, 30, 38, 48, 58, 69 and 80. KClO3 has a solubility of 4 g, 5, 7, 10, 13, 19, 23, 30, 38, 46 and 58. KCl has a solubility of 18, 9, 5, 3, 2, 2, 2, 2, 2, 2 and 2.
Solubilities of some ionic compounds in water as a function of temperature.

How does the solubility of KCl at 80 oC compare with that of NaCl at the same temperature?