Ch.16 - Aqueous Equilibrium WorksheetSee 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: Will a precipitate form when 10 mL of 0.015 M [Hg +] and 10 mL of 0.015 M [SO 4 2-] are mixed?  Ksp of Hg2SO4 is 6.5 x 10 -7. a. Yes; Q = 3.4 x 10 -6 which is larger than Ksp, a precipitate will form.  b. No; Q = 3.4 x 10 -6 which is larger than Ksp, a precipitate will not form. c. Yes, Q = 4.2 x 10 -7 which is smaller than Ksp, a precipitate will form.  d. No; Q = 4.2 x 10 -7 which is smaller than Ksp, a precipitate will not form.  e. No; Q = 3.4 x 10 -12 which is smaller than Ksp, a precipitate will not form. 

Problem

Will a precipitate form when 10 mL of 0.015 M [Hg +] and 10 mL of 0.015 M [SO 2-] are mixed? 

Ksp of Hg2SO4 is 6.5 x 10 -7.

a. Yes; Q = 3.4 x 10 -6 which is larger than Ksp, a precipitate will form. 

b. No; Q = 3.4 x 10 -6 which is larger than Ksp, a precipitate will not form.

c. Yes, Q = 4.2 x 10 -7 which is smaller than Ksp, a precipitate will form. 

d. No; Q = 4.2 x 10 -7 which is smaller than Ksp, a precipitate will not form. 

e. No; Q = 3.4 x 10 -12 which is smaller than Ksp, a precipitate will not form.