Oxidation States in Arsenite Ion

The video tutorial explains how to determine the oxidation state of each element in the arsenite ion (AsO3 3-). It begins by highlighting the ion's negative charge and the rule that oxidation numbers must sum to the ion's charge. The video then details the calculation of arsenic's oxidation state, given that oxygen is typically -2. By setting up an equation, the oxidation state of arsenic is found to be +3. The tutorial concludes by verifying that the sum of oxidation numbers matches the ion's charge.

What is the charge of the arsenite ion?

• 2-

• 3-

• 1+

• 3+

What is the typical oxidation state of oxygen in compounds?

• -1

• 0

• +2

• -2

How many oxygen atoms are present in the arsenite ion?

• 1

• 2

• 4

• 3

What is the oxidation state of arsenic in the arsenite ion?

• +5

• -3

• +3

• 0

Which element's oxidation state is calculated by solving the equation x - 6 = -3?

• Oxygen

• Hydrogen

• Arsenic

• Sulfur

What is the result of adding the oxidation states of all atoms in the arsenite ion?

• 1+

• 2-

• 3-

• 0

What is the sum of the oxidation states of the oxygen atoms in the arsenite ion?

• +3

• +6

• -3

• -6