Mastering Acid Nomenclature and Formulas in Chemistry

The video tutorial explains how to identify and name acids based on their chemical composition. Acids are identified by the presence of hydrogen. There are two main types: those without oxygen, which use the prefix 'hydro', and those with oxygen, which do not use a prefix. The tutorial provides examples such as hydroiodic acid and hydrofluoric acid for acids without oxygen, and nitrous and nitric acids for those with oxygen. Special attention is given to naming phosphorous and phosphoric acids, which require adding an 'R'. The video also includes a mnemonic to help remember naming rules for acids with oxygen.

What is the key indicator that a compound is an acid?

• Presence of oxygen

• Presence of nitrogen

• Presence of carbon

• Presence of hydrogen

What prefix is used for acids that do not contain oxygen?

• Nitro

• Aqua

• Hydro

• Oxy

Which of the following is an example of an acid without oxygen?

• Hydrofluoric acid

• Phosphoric acid

• Sulfuric acid

• Nitric acid

What happens to the prefix when naming acids that contain oxygen?

• It is removed

• It becomes 'hydro'

• It is replaced with 'aqua'

• It changes to 'oxy'

What does the 'us' ending in an acid's name indicate?

• The presence of oxygen

• The presence of hydrogen

• The polyatomic ion ends in 'ite'

• The polyatomic ion ends in 'ate'

Which polyatomic ion corresponds with the 'ic' ending in an acid's name?

• Sulfite

• Phosphite

• Nitrate

• Nitrite

What is the chemical formula for phosphorous acid?

• H3PO3

• H2SO4

• H3PO4

• HNO3

In the naming of phosphorous acid, what is a unique feature?

• It has no hydrogen

• It uses the prefix 'hydro'

• It includes an extra 'R'

• It ends with 'ic'

What is the mnemonic to remember the naming rules for acids with oxygen?

• Ic means ate

• Us means ite

• Hydro means no oxygen

• I ate organic apples despite being poisonous

What is the correct name for H3PO4?

• Phosphoric acid

• Phosphorous acid

• Nitric acid

• Sulfuric acid