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: Measured and Expected vant Hoff Factors for Several Substances at 25 oC Concentration Compound 0.100 m 0.0100 m 0.00100 m Expected Value Sucrose 1.00 1.00 1.00 1.00 NaCl 1.87 1.94 1.97 2.00 K2SO4 2.32 2.70 2.84 3.00 MgSO4 1.21 1.53 1.82 2.00 Based on the data given in the table, which solution would give the larger freezing-point lowering, a 0.030 m solution of NaCl or a 0.020 m solution of K2SO4?

Problem

Measured and Expected vant Hoff
Factors for Several Substances at 25 oC
Concentration
Compound 0.100 m 0.0100 m 0.00100 m Expected Value
Sucrose 1.00 1.00 1.00 1.00
NaCl 1.87 1.94 1.97 2.00
K2SO4 2.32 2.70 2.84 3.00
MgSO4 1.21 1.53 1.82 2.00

Based on the data given in the table, which solution would give the larger freezing-point lowering, a 0.030 m solution of NaCl or a 0.020 m solution of K2SO4?