Ch.16 - Aqueous Equilibrium WorksheetSee all chapters
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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: Amino acids [general formula NH 2CH(R)COOH] can be considered polyprotic acids. In many cases, the R group contains additional amine and carboxyl groups.(d) The R group of glutamic acid is —CH2CH2COOH (pKa = 4.07). Of the forms of glutamic acid that are shown below, which predominates at (1) pH 1, (2) physiological pH (∼7), and (3) pH 13?

Problem

Amino acids [general formula NH 2CH(R)COOH] can be considered polyprotic acids. In many cases, the R group contains additional amine and carboxyl groups.

(d) The R group of glutamic acid is —CH2CH2COOH (pKa = 4.07). Of the forms of glutamic acid that are shown below, which predominates at (1) pH 1, (2) physiological pH (∼7), and (3) pH 13?