Cobalt and Sulfate Compounds

The video tutorial explains how to name the compound CoSO4. It begins by identifying Cobalt as a transition metal and sulfate as a polyatomic ion. The tutorial then outlines the steps to name the metal and the ion, emphasizing the importance of recognizing the charges involved. Cobalt, being a transition metal, requires a Roman numeral to indicate its charge, resulting in the name Cobalt (IV) sulfate.

What type of metal is Cobalt in the compound CoSO4?

• Alkali metal

• Transition metal

• Noble gas

• Alkaline earth metal

What is the name of the polyatomic ion in CoSO4?

• Phosphate

• Sulfate

• Carbonate

• Nitrate

How can you determine the name of the polyatomic ion in a compound?

• By using a calculator

• By guessing

• By looking it up on a table

• By asking a friend

What is the charge of the sulfate ion in CoSO4?

• 2-

• 1-

• 4-

• 3-

How many sulfate ions are present in CoSO4?

• Three

• Four

• One

• Two

What is the overall charge of Cobalt in CoSO4 to balance the compound?

• 5+

• 3+

• 2+

• 4+

What does the Roman numeral in the name Cobalt(IV) sulfate indicate?

• The number of Cobalt atoms

• The charge of the sulfate ion

• The number of sulfate ions

• The charge of the Cobalt ion