Ch.14 - Chemical EquilibriumWorksheetSee 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: Consider the following reaction: Fe3+(aq) + SCN–(aq) ⇌ FeSCN2+(aq). A solution is made containing an initial [Fe3+]left[ {{ m{Fe}}^{3 + } } ight] of 1.2×10−3 M and an initial [SCN–]left[ {{ m{SCN}}^ -

Problem

Consider the following reaction: Fe3+(aq) + SCN(aq) ⇌ FeSCN2+(aq). A solution is made containing an initial [Fe3+] of 1.2×10−3 M and an initial [SCN] of 8.1×10−4 M. At equilibrium, [FeSCN2+] = 1.8×10−4 M. Calculate the value of the equilibrium constant (Kc).