Oxidation Numbers in Compounds

The video tutorial explains how to determine the oxidation numbers for each element in sodium nitrite (NaNO2). It begins by stating that the sum of oxidation numbers in a neutral compound is zero. Sodium, being in group one, has an oxidation number of +1. Oxygen typically has an oxidation number of -2. The video then sets up an equation to find the oxidation number of nitrogen, which is not directly given. By solving the equation, it is determined that nitrogen has an oxidation number of +3. The tutorial concludes by verifying that the sum of the oxidation numbers equals zero, confirming the compound's neutrality.

What is the sum of oxidation numbers in a neutral compound?

• It is zero.

• It is always positive.

• It is always negative.

• It varies depending on the compound.

What is the oxidation number of sodium in NaNO2?

• +1

• +2

• 0

• -1

What is the typical oxidation number of oxygen in compounds?

• -1

• -2

• 0

• +1

In the equation to find nitrogen's oxidation number, what does 'x' represent?

• The oxidation number of nitrogen

• The oxidation number of sodium

• The oxidation number of oxygen

• The total charge of the compound

What is the oxidation number of nitrogen in NaNO2?

• +1

• 0

• +2

• +3

How do you verify the oxidation numbers in NaNO2?

• By checking if the sum equals the charge of the compound

• By comparing with another compound

• By ensuring all elements have the same oxidation number

• By using the periodic table

What is the final sum of oxidation numbers in NaNO2?

• +3

• +1

• 0

• -1