Ch.12 - SolutionsWorksheetSee all chapters
All Chapters
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: Both ammonia and phosphine (PH3) are soluble in water. Which is least soluble and why? 1. ammonia; it does not form hydrogen bonds with water molecules. 2. phosphine; the P−H bonds are so strong that they cannot break to enable phosphine to hydrogen-bond with water. 3. ammonia; it is too small to be hydrated by water molecules. 4. ammonia; the N−H bonds are so strong that they cannot break to enable the ammonia to hydrogen-bond with water. 5. phosphine; it does not form hydrogen bonds with water molecules. 

Problem

Both ammonia and phosphine (PH3) are soluble in water. Which is least soluble and why?

1. ammonia; it does not form hydrogen bonds with water molecules.

2. phosphine; the P−H bonds are so strong that they cannot break to enable phosphine to hydrogen-bond with water.

3. ammonia; it is too small to be hydrated by water molecules.

4. ammonia; the N−H bonds are so strong that they cannot break to enable the ammonia to hydrogen-bond with water.

5. phosphine; it does not form hydrogen bonds with water molecules.