Sodium Nitrate and Ionic Compounds

The video tutorial explains the composition and properties of sodium nitrate (NaNO3), an ionic compound. It details the ionic charges of sodium (Na+) and nitrate (NO3-) ions, emphasizing the importance of memorizing the nitrate ion. The tutorial also covers how these ions dissociate in water, resulting in a net charge of zero. The video concludes with a summary of the ions present in sodium nitrate and their behavior in aqueous solutions.

What type of compound is sodium nitrate (NaNO3)?

• Molecular compound

• Metallic compound

• Ionic compound

• Covalent compound

What is the ionic charge of sodium (Na) in sodium nitrate?

• 2+

• 1+

• 2-

• 1-

What is the charge of the nitrate ion (NO3) in sodium nitrate?

• 2+

• 1+

• 1-

• 2-

How do the ionic charges in sodium nitrate balance out?

• They add up to a positive charge

• They add up to a negative charge

• They add up to zero

• They do not balance

What happens to sodium nitrate when it is dissolved in water?

• It evaporates

• It dissociates into ions

• It remains unchanged

• It forms a precipitate

How many ions are present in one formula unit of sodium nitrate?

• Three

• Two

• One

• Four