Types of Acids
We will be naming and writing formulas for two types of acids….
 Binary Acid- acid which contains __________________ and another element
Examples: ______, ______, _______
 Oxyacid- acid which contains ________________, _________________, and another
element (the oxygen and the other element make up a ______________________ ion)
Examples: ______, _______, ______
Checkpoint: Classify each acid correctly
1. H3PO4
binary
or
oxyacid
2. H2S
binary
or
oxyacid
3. C2H4O2
binary
or
oxyacid
Naming Binary Acids
1. Identify the name of the __________(neg. charged ion)
2. Replace the ending with _____
3. Place the prefix __________ in front of the anion’s name
4. Add the word _________ to the end of the name
General Form: ____________________________
Example 1: HBr = _________________________________
Example 2: H2S = _________________________________
Naming Oxyacids
1. Identify the _________________________ *hint: oxygen + element*
2. Change the suffix
a) IF the ion ends in –ate, change the ending to ________
b) IF the ion ends in –ite, change the ending to ________
3) Add the word “_________” to the end of the name
Example 1: H2CO3
Example 2: H2SO3
The anion
The anion
is called __________
“____________________________”
is called ____________
“_________________________________”
Checkpoint
1. Name the following acid: H3PO3 ____________________________________
2. Name the following acid: HClO4 ____________________________________
Formula Writing for Acids
 To determine the formula of an acid, first determine if it is a ______________ acid or an
________________
If it is a Binary Acid:
1. The cation will be __________
2. Write the anion with it’s ____________ according to the periodic table.
3. _________________________ the charges to get the formula.
Example:
Hydrosulfuric acid
Example: Hydrochloric acid
Checkpoint: Write the formula for “hydrobromic acid”
If it is an Oxyacid:
1. The cation will be __________
2. The polyatomic anion can be determined by looking at ________________ of the acid.
If it ends in –ic, drop the ending and add –ate. If it ends in –ous, drop the ending and add
–ite. Write the anion with it’s charge according to the _______________ polyatomic
ions.
3. Criss-Cross the charges to get the formula
Example:
Nitric acid
Example: Sulfurous acid
Checkpoint: Write the formula for “Phosphoric Acid”