Nitrate Ion and Oxidation Numbers

This video tutorial explains how to determine the oxidation numbers for each element in the compound Pb(NO3)2, also known as lead(II) nitrate. It covers the general rules for oxidation numbers, emphasizing that in neutral compounds, these numbers sum to zero. The video also discusses the nitrate ion (NO3-) and its charge, explaining how to calculate the oxidation numbers for lead and nitrate in the compound. The tutorial concludes with a reference to additional resources for further learning.

In a neutral compound, what should the sum of oxidation numbers equal?

• The charge of the ion

• The mass number

• Zero

• The atomic number

What is the charge of the nitrate ion (NO3-)?

• -2

• +1

• 0

• -1

Why is it important to memorize the properties of the nitrate ion?

• Because it is a common ion in many compounds

• Because it has a unique color

• Because it is unstable

• Because it is rarely used

What is the oxidation number of lead in Pb(NO3)2?

• +3

• +2

• +4

• +1

How many nitrate ions are present in Pb(NO3)2?

• 4

• 3

• 2

• 1

What is the oxidation number of nitrogen in the nitrate ion?

• +3

• +5

• -3

• -5

What must the oxidation number of lead be in Pb(NO3)2 to balance the charges?

• +1

• +2

• +3

• +4