Naming Phosphorus Acids and Ions

The video tutorial explains how to name the compound H3PO3 using a flowchart and a common ion table. It identifies H3PO3 as an acid and determines the polyatomic ion PO3 with a -3 charge. The tutorial guides viewers through the process of using the ion table to find the phosphite ion and then applying naming rules to derive the name 'phosphorus acid', noting an exception in the naming convention. The video concludes with a summary of the naming process.

What is the first step in naming H3PO3 according to the video?

• Determine its molecular weight

• Use a flowchart and common ion table

• Use the periodic table

• Identify it as a base

What charge does the PO3 ion have in H3PO3?

• -3

• -2

• -1

• +1

Which ion is identified as having a -3 charge in the common ion table?

• Phosphate

• Nitrate

• Phosphite

• Sulfate

What suffix is replaced when naming acids with 'ite' ions?

• ous

• ite

• ate

• ide

What is the exception noted for naming phosphorus acids?

• Remove the 'or' in the stem

• Keep the 'or' in the stem

• Add an extra 'o' in the name

• Change 'phosph' to 'phos'

What is the final name given to H3PO3 in the video?

• Phosphoric acid

• Phosphorous acid

• Phosphite acid

• Phosphate acid

Which part of the flowchart is used to determine the suffix change for acids?

• The side

• The end

• The beginning

• The middle