Ch.15 - Acid and Base EquilibriumSee 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

The most general definition for acids and bases was developed by Svante Arrhenius near the end of the 19th century. 

Understanding Arrhenius Acids & Bases

According to Svante Arrhenius the two most important ions fundamental to the concept of acids and bases were H3O+ , the hydronium ion, and OH , the hydroxide ion. 

Concept #1: Discussing Arrhenius Acids and Bases. 

An Arrhenius acid increases the H+ ion when dissolved in a solvent. 

An Arrhenius base increases the OH ion when dissolved in a solvent. 

Practice: Which ions are formed from the dissociation of the following compound?

Practice: Which ions are formed from the dissociation of the following compound?

Practice: Which ions are formed from the dissociation of the following compound?

Additional Problems
Which of the following is an Arrhenius acid? A) H2SO4 B) LiOH C) NH2CH3 D) CH3CCl3 E) More than one of these is an Arrhenius acid.
Which of the following in an Arrhenius acid? A) H2SO4 B) LiOH C) NH2CH3 D) CH3CH3 E) More than one of these is an Arrhenius acid.
Which of the following is an Arrhenius acid? A) H2SO4 B) LiOH C) NH2CH3 D) CH3CCl3 E) NH3
Which of the following cannot be an Arrhenius acid? a. HCl b. HNO3 c. CH3COOH d. CH4 e. all can be Arrhenius acids
What are the Arrhenius definitions of an acid and a base? 
According to the Arrhenius theory, a neutralization reaction involves:       A) the dissociation of a strong acid to hydrogen ions and an anion. B) the dissociation of a strong base into hydroxide ions and a cation. C) the addition of water to ammonia to make ammonium hydroxide. D) the combination of hydrogen ions and hydroxide ions to form water
Which of the following compounds is not an Arrhenius acid?a. H2SO3b. HClOc. KOHd. HF
Classify each of these compounds as an Arrhenius acid, an Arrhenius base, or neither.HClHNO3HBrHClOKOHBa(OH)2NaClLiOHC3H5
What is the Arrhenius base in the equation below?2HCl + Ca(OH)2 → CaCl2 + 2H2Oa. HClb.Ca(OH)2 c. CaCl2d.H2O
Classify each of these compounds as an Arrhenius acid, an Arrhenius base, or neither.HClO3                                          KClNaOH                                           Hg(OH)    2H3PO4                                          Al(OH)     3HCl                                               HBrZn(OH)2                                        C  3H8
Classify each of these compounds as an Arrhenius acid, an Arrhenius base, or neither. 1. HF                                                                             6. NH4OH 2. KCl                                                                            7. LiOH 3. C2H6                                                                           8. HCIO3 4. Mn(OH)2                                                                    9. Ca(OH)2 5. H3PO4                                                                       10. HBr 
Classify each of these compounds as an Arrhenius acid, an Arrhenius base, or neither.a. HNO3 b. Ba(OH)2 c. CH2 d. HBr e. HClO3 f. Mg(OH)2 g. HF h. NaCl i. KOH j. LiOH
Which of the following is an Arrhenius base?a. RbOHb. CH3OHc. KBrd. CH3CO2He. More than one of these compounds is an Arrhenius base.
Classify each of these compounds as an Arrhenius acid, an Arrhenius base, or neither.HClHBrHClOCa(OH)2CH4KOHZn(OH)2H3PO4AgOHKCl
HC2H3O2(aq) is an acid.Write a chemical equation showing how this is an acid according to the Arrhenius definition.Express your answer as a balanced chemical equation. Identify all of the phases in your answer. 
Which of the following is an Arrhenius base?a. H2SO4b. LiOHc. NH2CH3d. CH3CH3e. More than one of these is an Arrhenius base.
Using the Arrhenius theory, classify the following as either an acid or a base, by placing the compound in the correct bin.