1. Acid-Base Reactions are Neutralization Reactions
When strong acid and bases with equal amounts of hydrogen ion H+ and hydroxide ions OH- are mixed, the resulting solution is neutral.
HCl(aq) + NaOH(aq) ® NaCl(aq) + H2O(l)
acid base salt water
Ca(OH) HCl CaCl H2O
base acid salt water

2. neutralization reactions are double replacement reactions
HNO3 + KOH ®
HCl + Mg(OH)2 ®
H2SO4 + NaOH ®

3. Ionic Equations for Neutralization
Write strong acids, bases, and salt as ions
H+ + Cl Na+ + OH- Na+ + Cl H2O
Cross out matched ions
Write a net ionic reaction
H OH- H2O

4. moles H3O+ = moles OH- MV n = MV n Titration M: Molarity V: volume
n: # moles of H+ ions in the acid or # moles of OH- ions in the base

5. Titration
42.5 mL of 1.3M KOH are required to neutralize 50.0 mL of H2SO4. Find the molarity of H2SO4.
H3O+
M = ?
V = 50.0 mL
n = 2
OH-
M = 1.3M
V = 42.5 mL
n = 1
MVn = MVn
M(50.0mL)(2)
=(1.3M)(42.5mL)(1)
M = 0.55M H2SO4