Chemistry Exam 4 Questions and
Answers
Arrhenius definitions for an Acid - correct answer-Substance that dissolves in water to
produce H+ ions.
Arrhenius definitions for an Base - correct answer-Substance that dissolves in water to
produce OH- ions.
Bronsted-Lowry definition for Acid - correct answer-A proton donor
Bronsted-Lowry definition for Base - correct answer-A proton acceptor
Identify acid as monoprotic, diprotic or triprotic. - correct answer-Monoprotic- Contains 1
H
Diprotic- Contains 2 H
Triprotic- Contains 3 H
Amphiprotic- - correct answer-A species that can be either an acid or a base is said to
be amphoteric.
Explain what it means that an acid or base is "strong or weak." - correct answer-Not all
acids have same strength, Some acids readily donate protons more then others.
"Strong Acids"- Readly donate a proton, when dissolved in water 100% of the acid
dissociates into ions.
"Weak Acids"- Less readily donate a proton, when dissolved in water only a smalll
fraction of the base forms ions.
Dissociation- - correct answer-Splitting apart of a compound into individual ions.
Strong acids & bases are- - correct answer-Strong electrolytes
Weak acids & bases are- - correct answer-Weak electrolytes
Equilibrium favors- - correct answer-The weaker side, Favors the side with smaller Ka
Self-ionization of water- - correct answer-Pure water contains Small number of H3O+
and OH- ions.
Called the Self-ionization of water-
H20+ H20 ⇔ H30+ + OH-
Answers
Arrhenius definitions for an Acid - correct answer-Substance that dissolves in water to
produce H+ ions.
Arrhenius definitions for an Base - correct answer-Substance that dissolves in water to
produce OH- ions.
Bronsted-Lowry definition for Acid - correct answer-A proton donor
Bronsted-Lowry definition for Base - correct answer-A proton acceptor
Identify acid as monoprotic, diprotic or triprotic. - correct answer-Monoprotic- Contains 1
H
Diprotic- Contains 2 H
Triprotic- Contains 3 H
Amphiprotic- - correct answer-A species that can be either an acid or a base is said to
be amphoteric.
Explain what it means that an acid or base is "strong or weak." - correct answer-Not all
acids have same strength, Some acids readily donate protons more then others.
"Strong Acids"- Readly donate a proton, when dissolved in water 100% of the acid
dissociates into ions.
"Weak Acids"- Less readily donate a proton, when dissolved in water only a smalll
fraction of the base forms ions.
Dissociation- - correct answer-Splitting apart of a compound into individual ions.
Strong acids & bases are- - correct answer-Strong electrolytes
Weak acids & bases are- - correct answer-Weak electrolytes
Equilibrium favors- - correct answer-The weaker side, Favors the side with smaller Ka
Self-ionization of water- - correct answer-Pure water contains Small number of H3O+
and OH- ions.
Called the Self-ionization of water-
H20+ H20 ⇔ H30+ + OH-
