Acid-base Titration and Titration Curves Test Questions and Answers Graded A+
Titration Curves - Answers Plots of solution property versus added titrant amount, useful in acid-base
systems to monitor pH changes
Equivalence Point - Answers Point in a titration where stoichiometrically equivalent amounts of acid and
base have reacted
Hydronium Ion - Answers H₃O⁺ ion formed by the reaction of water with an acid
Autoprotolysis - Answers Self-ionization of water to form hydronium and hydroxide ions
Henderson-Hasselbalch Equation - Answers pH = pKa + log([A⁻]/[HA]), used for weak acid-base
equilibrium calculations
Equilibrium Point - Answers Point in a titration where the concentrations of the acid and its conjugate
base are equal
Stoichiometric Calculations - Answers Calculations based on the mole ratios of reactants and products in
a chemical reaction
Strong Acid - Answers An acid that ionizes completely in solution to produce hydronium ions
Weak Acid - Answers An acid that only partially ionizes in solution
Strong Base - Answers A base that ionizes completely in solution to produce hydroxide ions
Weak Base - Answers A base that only partially ionizes in solution
Monoprotic - Answers Describing an acid or base that can donate or accept only one proton (H⁺)
Polyprotic - Answers Describing an acid that can donate more than one proton in successive reactions
Acid-Base Indicators - Answers Substances that change color at different pH values to indicate the
endpoint of a titration
ICE Approach - Answers Initial-Change-Equilibrium method used to solve equilibrium problems
Initial State - Answers At the beginning of a titration where the added titrant volume is 0 mL, the pH is
determined by the acid being titrated, with the weak acid sample exhibiting a greater initial pH.
Pre-equivalence Point - Answers The stage of a titration where 0 mL < V < 25 mL, the solution pH
increases gradually as the acid is consumed by reaction with added titrant, consisting of unreacted acid
and its reaction product.
Postequivalence Point - Answers The stage of a titration where V > 25 mL, and the pH is determined by
the amount of excess strong base titrant added, resulting in similar titration curves for both samples at
this stage.
Titration Curves - Answers Plots of solution property versus added titrant amount, useful in acid-base
systems to monitor pH changes
Equivalence Point - Answers Point in a titration where stoichiometrically equivalent amounts of acid and
base have reacted
Hydronium Ion - Answers H₃O⁺ ion formed by the reaction of water with an acid
Autoprotolysis - Answers Self-ionization of water to form hydronium and hydroxide ions
Henderson-Hasselbalch Equation - Answers pH = pKa + log([A⁻]/[HA]), used for weak acid-base
equilibrium calculations
Equilibrium Point - Answers Point in a titration where the concentrations of the acid and its conjugate
base are equal
Stoichiometric Calculations - Answers Calculations based on the mole ratios of reactants and products in
a chemical reaction
Strong Acid - Answers An acid that ionizes completely in solution to produce hydronium ions
Weak Acid - Answers An acid that only partially ionizes in solution
Strong Base - Answers A base that ionizes completely in solution to produce hydroxide ions
Weak Base - Answers A base that only partially ionizes in solution
Monoprotic - Answers Describing an acid or base that can donate or accept only one proton (H⁺)
Polyprotic - Answers Describing an acid that can donate more than one proton in successive reactions
Acid-Base Indicators - Answers Substances that change color at different pH values to indicate the
endpoint of a titration
ICE Approach - Answers Initial-Change-Equilibrium method used to solve equilibrium problems
Initial State - Answers At the beginning of a titration where the added titrant volume is 0 mL, the pH is
determined by the acid being titrated, with the weak acid sample exhibiting a greater initial pH.
Pre-equivalence Point - Answers The stage of a titration where 0 mL < V < 25 mL, the solution pH
increases gradually as the acid is consumed by reaction with added titrant, consisting of unreacted acid
and its reaction product.
Postequivalence Point - Answers The stage of a titration where V > 25 mL, and the pH is determined by
the amount of excess strong base titrant added, resulting in similar titration curves for both samples at
this stage.
