Ferric Nitrate and Oxidation States

The video tutorial explains how to write the formula for ferric nitrate, also known as iron III nitrate. It begins by discussing the older naming system, which uses 'ic' to indicate the higher oxidation state of iron, which is +3. The tutorial then covers the nitrate ion, NO3, with a charge of -1, and demonstrates how to balance these charges using the crisscross method. The final formula for ferric nitrate is presented as Fe(NO3)3.

What does the 'ic' suffix in ferric nitrate indicate?

• The use of a lower oxidation state

• The use of a higher oxidation state

• The presence of a polyatomic ion

• The presence of a single atom

What are the possible oxidation states of iron?

• +1 and +2

• +3 and +4

• +2 and +3

• +1 and +3

Why is the higher oxidation state used in ferric nitrate?

• Because it is more stable

• Because of the 'ic' suffix

• Because it is less stable

• Because of the 'ous' suffix

What is the chemical formula for the nitrate ion?

• NO3

• NO

• NO4

• NO2

What is the charge of the nitrate ion?

• 1+

• 2-

• 1-

• 2+

What method is used to balance the charges in ferric nitrate?

• Cross-multiplication method

• Crisscross method

• Addition method

• Substitution method

How many nitrate ions are needed to balance the charge of one iron ion in ferric nitrate?

• Three

• Two

• Four

• One

What is the final chemical formula for ferric nitrate?

• Fe(NO2)2

• Fe(NO2)3

• Fe(NO3)2

• Fe(NO3)3