Oxidation States and Manganese Compounds

This video tutorial explains how to determine the oxidation numbers for each element in the compound Mn3(PO4)2, known as manganese(II) phosphate. It begins by discussing the neutrality of the compound and the role of the phosphate ion. The tutorial then walks through the calculation of oxidation numbers, focusing on manganese and its bonding. The video concludes with a reference to additional resources for further learning.

What is the overall charge of the compound Mn3(PO4)2?

• Neutral

• Positive

• Depends on the environment

• Negative

Which ion is present in Mn3(PO4)2 that helps determine the oxidation numbers?

• Sulfate ion

• Phosphate ion

• Nitrate ion

• Carbonate ion

What is the total oxidation number for the phosphate ion in Mn3(PO4)2?

• -3

• +6

• -6

• +3

How many manganese atoms are present in Mn3(PO4)2?

• Four

• One

• Two

• Three

What is the oxidation number of each manganese atom in Mn3(PO4)2?

• +1

• +4

• +2

• +3

If the phosphate ion contributes a -6 charge, what must the manganese atoms contribute to balance the compound?

• +3

• +6

• +9

• +12