Unit 26
Applications of Acids and Bases (Chapter 7)
•Acid Rain (7.8)
•Antacids (7.9)
•Acids/Bases in Industry (7.10)
•Acids/Bases in Health (7.10)
Still needs interesting stuff – acid rain pictures of
forest, statues, maps, etc.
Acid Strengths (7.4)
•Recall that an acid reaction with water may be written generally as:
HA (aq) +
H2O (ℓ) →
A- (aq)
+
H3O+ (aq)
•Any acid reacting with water will undergo the same sort of reaction but possibly to
a different degree. Acids may be classified as strong or weak depending on the
extent to which they break apart.
•Strong acids: A strong acid will undergo the reaction above to about 100% to form the A- and the
H3O+. The only seven strong acids are HCl, HBr, HI, HNO3, H2SO4, HClO3, and HClO4.
•Weak acids: A weak acid will only undergo the reaction above to small extent – maybe 5%. Acids
that are not one of the seven above will be classified as weak acids. Examples include HF, HNO2,
HC2H3O2, and others