Dihydrogen Phosphate Ion Concepts

The video tutorial explains how to find the oxidation numbers for phosphorus in the dihydrogen phosphate ion (H2PO4-). It begins by introducing the concept of oxidation numbers and the importance of ion charges. The tutorial then details the oxidation numbers for hydrogen and oxygen, followed by setting up an equation to solve for phosphorus's oxidation number. The conclusion summarizes the process and confirms the oxidation number of phosphorus as +5.

What is the charge on the dihydrogen phosphate ion?

• 0

• +2

• +1

• -1

What is the typical oxidation number for hydrogen when bonded to nonmetals?

• -1

• 0

• +1

• +2

What is the oxidation number for oxygen in most compounds?

• -1

• 0

• +2

• -2

How many hydrogen atoms are present in the dihydrogen phosphate ion?

• 1

• 2

• 3

• 4

What is the total contribution of the hydrogen atoms to the charge in the dihydrogen phosphate ion?

• +1

• +2

• -1

• 0

What is the total contribution of the oxygen atoms to the charge in the dihydrogen phosphate ion?

• -4

• -6

• -2

• -8

What is the oxidation number of phosphorus in the dihydrogen phosphate ion?

• +6

• +4

• +3

• +5

What is the equation used to find the oxidation number of phosphorus in the dihydrogen phosphate ion?

• x + 6 = 1

• x - 8 = 0

• x - 6 = -1

• x + 2 = -1