Ch.16 - Aqueous Equilibrium See 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: Which weak acid-conjugate base combination would be the best to create a solution with a pH of 4.193?      a)  Butanoic acid and Potassium butanoate (Ka = 1.5 x 10-5)      b)  Benzoic acid and Sodium benzoate (Ka = 6.3 x 10-5)      c)  Acetic acid and Lithium acetate (Ka = 1.8 x 10-5)      d)  Ammonium chloride and Ammonia (Kb = 1.8 x 10-5)      e)  Hypochlorous acid and sodium hypochlorite (Ka = 2.9 x 10-8)

Problem

Which weak acid-conjugate base combination would be the best to create a solution with a pH of 4.193?

     a)  Butanoic acid and Potassium butanoate (Ka = 1.5 x 10-5)

     b)  Benzoic acid and Sodium benzoate (Ka = 6.3 x 10-5)

     c)  Acetic acid and Lithium acetate (Ka = 1.8 x 10-5)

     d)  Ammonium chloride and Ammonia (Kb = 1.8 x 10-5)

     e)  Hypochlorous acid and sodium hypochlorite (Ka = 2.9 x 10-8)