Bicarbonate Ion and Aluminum Compounds

The video tutorial explains how to name the compound Al-HCO3, known as aluminum bicarbonate or aluminum hydrogen carbonate. It begins by identifying aluminum as a metal and HCO3 as a polyatomic ion, forming an ionic compound. The tutorial details how to name the aluminum component and the polyatomic ion, HCO3, which can be called bicarbonate or hydrogen carbonate. It further explains the process of writing the formula for aluminum bicarbonate, emphasizing the need to balance the charges by using three bicarbonate ions to neutralize the three-plus charge of aluminum, resulting in a net charge of zero.

What type of compound is Al-HCO3?

• Molecular compound

• Metallic compound

• Ionic compound

• Covalent compound

What is the metal component in Al-HCO3?

• Oxygen

• Carbon

• Aluminum

• Hydrogen

What is the name of the polyatomic ion HCO3?

• Bicarbonate ion

• Sulfate ion

• Carbonate ion

• Nitrate ion

What is another name for the bicarbonate ion?

• Hydrogen carbonate ion

• Carbon dioxide ion

• Hydroxide ion

• Phosphate ion

What is the charge of the aluminum ion in Al-HCO3?

• 4+

• 3+

• 2+

• 1+

How many bicarbonate ions are needed to balance the charge of one aluminum ion?

• Four

• Three

• Two

• One