Naming Acids: Practice Problems and Rules

What is the first step in naming an acid from its chemical formula?

• Look up the name in a textbook.

• Identify the H+ part and the negative ion part.

• Consult the periodic table.

• Memorize the polyatomic ions.

What is the name of the acid with the formula HBrO4?

• Bromous acid

• Perbromic acid

• Hydrobromic acid

• Bromic acid

How do you name an acid containing a polyatomic ion ending in 'ite'?

• Add 'hydro' prefix and 'ic' suffix.

• Replace 'ite' with 'ic acid'.

• Replace 'ite' with 'ous acid'.

• Add 'ic' to the ion name.

What mnemonic can help remember the naming rule for acids with ions ending in 'ide'?

• I ate something icky.

• Hydro and ic make it terrific.

• My ride has hydraulics.

• Sprite is delicious.

What is the correct name for the acid with the formula HF?

• Fluoric acid

• Hydrofluoride acid

• Hydrofluoric acid

• Fluorous acid

What is the charge on the polyatomic ion in H3ASO3?

• 1-

• 2-

• 3+

• 3-

Which acid is an exception to the general naming rule and requires an extra 'ous' in its name?

• Phosphorous acid

• Sulfurous acid

• Sulfuric acid

• Phosphoric acid

What is the name of the acid with the formula H3BO3?

• Borate acid

• Hydroboric acid

• Boronic acid

• Boric acid

What rule is applied to name an acid containing a polyatomic ion ending in 'ate'?

• Add 'hydro' prefix and 'ic' suffix.

• Add 'ous' to the ion name.

• No change is needed.

• Replace 'ate' with 'ic acid'.

What is the name of the acid with the formula HIO?

• Hydroiodic acid

• Hypoiodous acid

• Iodic acid

• Iodous acid