Acids
Strong Acids
Hydrochloric Acid (HCl)
Sulfuric Acid (H2SO4)
Weak Acids
Acetic Acid (CH3COOH)
Citric Acid (C6H8O7)
Bases
Strong Bases
Sodium Hydroxide (NaOH)
Potassium Hydroxide (KOH)
Weak Bases
Ammonia (NH3)
Aluminum Hydroxide (Al(OH)3)
Properties
Acids
Sour taste
Turn blue litmus paper red
Bases
Bitter taste
Turn red litmus paper blue
Reactions
Acid-Base Neutralization
Acid + Base → Salt + Water
Acid-Base Indicators
Phenolphthalein
Methyl Orange
Arrhenius Acids and Bases
Definition
Properties
Produce H+ ions in water
Sour taste
React with bases to form water and salt
Definition
Properties
Produce OH- ions in water
Bitter taste
Slippery to touch
Compounds that ionize in water to produce hydrogen ions (H+)
Produce H+ ions in water
Examples: HCl, H2SO4
Sour taste
Examples: Lemon juice, vinegar
React with bases to form water and salt
Example: HCl + NaOH → H2O + NaCl
Compounds that ionize in water to produce hydroxide ions (OH-)
Produce OH- ions in water
Examples: NaOH, KOH
Bitter taste
Examples: Baking soda, soap
Slippery to touch
Example: Soap bars
Central Idea:
Bronsted-Lowry Acids and Bases
Main Branches:
Acids:
Proton Donors
Examples: HCl, H2SO4
Strength: Strong vs. Weak
Bases:
Proton Acceptors
Examples: NH3, OH-
Strength: Strong vs. Weak
Sub-branches:
Acids:
Proton Donors:
Definition
Reaction with Bases
Examples:
Hydrochloric Acid (HCl)
Sulfuric Acid (H2SO4)
Strength:
Strong Acids
Weak Acids
Bases:
Proton Acceptors:
Definition
Reaction with Acids
Examples:
Ammonia (NH3)
Hydroxide (OH-)
Strength:
Strong Bases
Weak Bases
Lewis acids and bases are chemical species that participate in Lewis acid-base reactions.
Definition: Accepts an electron pair to form a covalent bond.
Examples:
Metal cations
Boron trifluoride (BF3)
Characteristics:
Electron-deficient
Can have vacant orbitals
Definition: Donates an electron pair to form a covalent bond.
Examples:
Ammonia (NH3)
Hydroxide ion (OH-)
Characteristics:
Electron-rich
Contains lone pair of electrons