Sulfate Ions and Aluminum Compounds

The video tutorial explains how to name the compound Al2(SO4)3, known as aluminum sulfate. It begins by identifying the sulfate ion as a polyatomic ion and explains the ionic nature of the compound. The tutorial then details the steps to name the metal (aluminum) and the polyatomic ion (sulfate). It further discusses the charges associated with the sulfate ion and how to balance them with aluminum to achieve a net charge of zero. The video concludes with a summary of the naming process for aluminum sulfate.

What is the polyatomic ion present in Al2(SO4)3?

• Phosphate

• Carbonate

• Sulfate

• Nitrate

What type of compound is Al2(SO4)3?

• Molecular

• Metallic

• Ionic

• Covalent

What is the first step in naming Al2(SO4)3?

• Name the polyatomic ion

• Determine the number of atoms

• Name the metal

• Identify the charge of the ions

What is the charge of the sulfate ion?

• 4-

• 3-

• 1-

• 2-

How many sulfate ions are present in Al2(SO4)3?

• 3

• 1

• 4

• 2

What is the total negative charge contributed by the sulfate ions in Al2(SO4)3?

• 2-

• 4-

• 6-

• 8-

What is the correct name for Al2(SO4)3?

• Aluminum Sulfate

• Aluminum Sulfur

• Aluminum Sulfide

• Aluminum Sulfite