Drill
 Determine the name of the following
Molecules?
1. CO2
2. CO
Objective
 The student will be able to:

Complete practice problems in order to name
Acids and Bases.
SAT/HSA Enrichment
 There are … Carbon atoms represented by
a.
b.
c.
d.
3Mg(HCO3)2
2
3
5
6
Quiz
 Naming Molecular Compounds!
Acid Demonstration
 Demo I


Pour approximately 50 mL of vinegar into 100
mL beaker.
Take approximately 2 grams of sodium
bicarbonate (baking soda) and add it to the
vinegar.
Acid Demonstration
 Demo II





Place 2 grams of mossy zinc in a large test
tube.
Add approximately 10 mL of 3M hydrochloric
acid to the test tube.
Immediately loosely stopper the test tube.
Light a wooden splint.
Remove the stopper and place wooden splint
near the mouth of the test tube.
Acid Demonstration
 Demo III




Pour 250 mL of 0.1 NaOH into a 1000 mL
Erlenmeyer flask.
Add a few drops of phenolphthalein indicator
to the solution.
Place solution on a magnetic stirrer.
While stirring, add 50 mL of 3 M HCl solution.
Acid Demonstration
 All the reactions involve acids and we will be
studying many reactions that involve acids.
 Therefore, you should know how to name and
write the formulas of acids.
Naming and Writing Formulas
for Acids and Bases
How are they named?
Naming and Writing Formulas for Acids and Bases
 Some ants can give painful
stings when threatened or
disturbed. Certain ant
species called formicines
have poison glands that
produce venom containing
formic acid. You will learn
the names and formulas of
some important acids such
as formic acid.
Naming Acids
 An acid is a compound that contains one or
more hydrogen atoms and produces
hydrogen ions (H+) when dissolved in water.
Acids have various uses.
Naming Acids
 Three rules can help you name an acid with
the general formula HnX.

When the name of the anion (X) ends in -ide,
the acid name begins with the prefix hydro-.

The stem of the anion has the suffix -ic and is
followed by the word acid.
9.4
Naming Acids
 When the anion name ends in -ite, the acid
name is the stem of the anion with the suffix ous, followed by the word acid.
9.4
Naming Acids
 When the anion name ends in -ate, the acid
name is the stem of the anion with the suffix ic followed by the word acid.
Naming Acids
 A Summary of the Three Rules for Naming
Acids.
Writing Formulas for Acids
 Use the rules for writing the names of
acids in reverse to write the formulas for
acids.

What is the formula for hydrobromic acid?
Following Rule 1, hydrobromic acid (hydroprefix and -ic suffix) must be a combination of
hydrogen ion (H+) and bromide ion (Br–). The
formula of hydrobromic acid is HBr.
Writing Formulas for Acids
Names and Formulas for Bases
 Bases are named in the same way as other
ionic compounds—the name of the cation
is followed by the name of the anion.

For example, aluminum hydroxide consists of
the aluminum cation (Al3+) and the hydroxide
anion (OH–). The formula for aluminum
hydroxide is Al(OH)3.
9.4
Names and Formulas for Bases
 Sodium hydroxide (NaOH) is a base that is
used to make paper.
9.4
Names and Formulas for Bases
 Cleaners and soap contain sodium hydroxide.
Section Quiz
1.The name for H2S(aq) is
a.
b.
c.
d.
sulfuric acid.
hydrosulfuric acid.
sulfurous acid.
hydrosulfurous acid.
Section Quiz
2.The chemical formula for chlorous acid is
a.
b.
c.
d.
HClO2.
HClO3.
HClO4.
HCl.
Section Quiz
3.The correct chemical name for NH4OH is
a.
b.
c.
d.
nitrogen tetrahydrogen hydroxide.
nitrogen pentahydrogen oxide.
ammonium oxyhydride.
ammonium hydroxide.
Acids Organizer
 Complete an Acid organizer
Acid Nomenclature
 Complete Acid Nomenclature worksheet.
Summary Questions
1. What is the difference b/w the formulas of
2.
3.
4.
5.
acids and bases?
What is the difference b/w naming an acid
and base?
What do acids and bases have in common?
What type of elements are the same in
both?
When the anion ends in -ite the acid suffix
is?
When the anion ends in –ate the acid suffix
is?
Homework
 Naming Acids worksheet
 Exit ticket:

Naming Acids and Bases