- Ch.1 - Introduction: Matter, Energy, and Measurement151
- Ch.2 - Atoms, Molecules, and Ions207
- Ch.3 - Chemical Reactions and Reaction Stoichiometry192
- Ch.4 - Reactions in Aqueous Solution157
- Ch.5 - Thermochemistry123
- Ch.6 - Electronic Structure of Atoms135
- Ch.7 - Periodic Properties of the Elements110
- Ch.8 - Basic Concepts of Chemical Bonding122
- Ch.9 - Molecular Geometry and Bonding Theories153
- Ch.10 - Gases139
- Ch.11 - Liquids and Intermolecular Forces77
- Ch.12 - Solids and Modern Materials94
- Ch.13 - Properties of Solutions99
- Ch.14 - Chemical Kinetics124
- Ch.15 - Chemical Equilibrium73
- Ch.16 - Acid-Base Equilibria112
- Ch.17 - Additional Aspects of Aqueous Equilibria109
- Ch.18 - Chemistry of the Environment58
- Ch.19 - Chemical Thermodynamics115
- Ch.20 - Electrochemistry102
- Ch.21 - Nuclear Chemistry67
- Ch.22 - Chemistry of the Nonmetals6
- Ch.23 - Transition Metals and Coordination Chemistry19
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Chapter 13, Problem 18a
When ammonium chloride dissolves in water, the solution becomes colder. (a) Is the solution process exothermic or endothermic?
Video transcript
Indicate the principal type of solute–solvent interaction in each of the following solutions and rank the solutions from weakest to strongest solute–solvent interaction: (b) CH2Cl2 in benzene (C6H6)
Indicate the principal type of solute–solvent interaction in each of the following solutions and rank the solutions from weakest to strongest solute–solvent interaction: (c) methanol (CH3OH) in water
An ionic compound has a very negative ∆Hsoln in water (b) Which term would you expect to be the largest negative number: ∆Hsolvent, ∆Hsolute, or ∆Hmix?
When ammonium chloride dissolves in water, the solution becomes colder. (b) Why does the solution form?
The first stage of treatment at the reverse osmosis plant in Carlsbad, California, is to flow the water through rock, sand, and gravel as shown here. Would this step remove particulate matter? Would this step remove dissolved salts?
[Section 18.4]
Two nonpolar organic liquids, hexane (C6H14) and heptane (C7H16), are mixed. (a) Do you expect ∆Hsoln to be a large positive number, a large negative number, or close to zero? Explain.