Iron Compounds and Bicarbonate Ions

The video tutorial explains how to name the compound Fe(HCO3)3. It begins by identifying iron as a transition metal and HCO3 as a polyatomic ion, specifically bicarbonate. The tutorial details the process of determining the charge of iron, which is +3, and how to represent this in the name using Roman numerals. It also discusses alternative names for the compound, such as Iron(III) Hydrogen Carbonate. Finally, it explains how to write the chemical formula from the name, emphasizing the importance of understanding charges and memorizing polyatomic ions.

What type of metal is iron in the compound Fe(HCO3)3?

• Alkali metal

• Noble gas

• Transition metal

• Alkaline earth metal

What is the name of the polyatomic ion HCO3?

• Sulfate

• Nitrate

• Bicarbonate

• Carbonate

What is the charge of the bicarbonate ion?

• 1-

• 0

• 2-

• 3-

Why is it necessary to use Roman numerals in the name of Fe(HCO3)3?

• To denote the molecular weight

• To specify the number of hydrogen atoms

• To show the charge of the transition metal

• To indicate the number of polyatomic ions

How many bicarbonate ions are needed to balance the charge of iron in Fe(HCO3)3?

• Four

• Three

• Two

• One

What is another valid name for the bicarbonate ion?

• Nitrate

• Sulfate

• Hydrogen carbonate

• Carbonate

What is the significance of the Roman numeral in the name of a compound with a transition metal?

• It denotes the compound's solubility

• It indicates the number of atoms in the compound

• It shows the oxidation state of the metal

• It specifies the type of polyatomic ion

If given the name 'iron(III) bicarbonate', what charge does the iron have?

• 4+

• 1+

• 2+

• 3+

Which of the following is NOT a correct name for Fe(HCO3)3?

• Iron(II) bicarbonate

• Iron(III) bicarbonate

• Iron(III) hydrogen carbonate

• Iron(III) carbonate

What information is necessary to write the formula from the name 'iron(III) bicarbonate'?

• The charge of the bicarbonate ion

• The atomic mass of iron

• The solubility of the compound

• The number of hydrogen atoms