Strength of Acids & Bases
A Strong Acid, is an acid which
form ions ( ), and is therefore a
in water to
conductor of electricity.
Ex. Ionization of hydrochloric acid (100 % ionization)
A Weak Acid, is an acid which
form ions ( ), and is therefore a
in water to
conductor of electricity.
Ex. Ionization of acetic acid (1.3 % ionization)
Strong Bases are bases which
form ions ( ), and are therefore
in water to
conductors of water.
Ex. Dissociation of potassium hydroxide (100 % ionization)
Weak Bases are bases which
form some ions ( ), and are therefore
in water to
conductors of water.
Ex. Dissociation of ammonia (100 % ionization)
H+ and OH- ion concentrations
The properties of acids and bases are determined by the
(for acids) and
(for bases) that are in solution. The
the concentration of hydrogen or hydroxide ions in solution, the
more
or
the solution is. We can determine the
concentration of these H+ and OH- ions in solution by simple
stoichiometry.
Ex.1 What is the concentration of H+ ions in a solution of 0.50
mol/L HBr(aq)
Step 1: Write the balanced equation
Step 2: Use molar ratios to determine concentration of H+ ions
Ex.2 What is the concentration of OH- ions in a solution of 0.01
mol/L NaOH(aq)
Step 1: Write the balanced equation
Step 2: Use molar ratios to determine concentration of OH- ions
Homework: Pg. 300 # 4, Pg. 304 # 6,12