Oxidation Numbers and Sulfite Ion

The video tutorial explains how to find the oxidation numbers for each atom in the sulfite ion (SO3 2-). It begins by identifying the oxidation number of oxygen as -2 and uses this information, along with the overall charge of the ion, to determine the oxidation number of sulfur. The tutorial provides a step-by-step explanation of the calculation process, concluding with a recap of the method used to find the oxidation numbers.

What is the main focus of the video tutorial?

• Describing the properties of metals

• Discussing chemical bonding

• Explaining the periodic table

• Finding the oxidation number for each atom in SO3 2-

What is the typical oxidation number assigned to oxygen in compounds?

• +2

• +1

• -2

• 0

Why is the oxidation number of sulfur not directly found in the table?

• Sulfur is not an element

• Sulfur's oxidation number varies depending on the compound

• Sulfur always has a fixed oxidation number

• Sulfur is a noble gas

How is the oxidation number of sulfur in SO3 2- determined?

• By using the periodic table

• By measuring the mass of the compound

• By using the known oxidation numbers of oxygen and the charge of the ion

• By assuming it is always +6

What is the oxidation number of sulfur in the sulfite ion?

• 0

• +6

• -2

• +4

What is the total charge of the sulfite ion?

• 0

• +1

• -2

• -1

What was the final step in determining the oxidation numbers in the sulfite ion?

• Using the periodic table

• Measuring the ion's mass

• Calculating the total charge

• Recapping the rules and calculations