Ammonium Carbonate and Ion Chemistry

The video tutorial explains how to determine the number of ions in a compound, using ammonium carbonate as an example. It covers the identification of polyatomic ions like carbonate and ammonium, and how they dissociate in water. The tutorial also demonstrates how to calculate the moles of ions in a compound, providing examples with different quantities of ammonium carbonate. The video concludes with a summary of the key points discussed.

What is the charge of the carbonate ion?

• One minus

• One plus

• Two minus

• Two plus

Which ion is represented by NH4+?

• Carbonate ion

• Ammonium ion

• Sulfate ion

• Nitrate ion

What happens to ammonium carbonate when it is dissolved in water?

• It forms a solid precipitate

• It dissolves and forms aqueous ions

• It evaporates

• It remains unchanged

How many moles of ammonium ions are present in one mole of ammonium carbonate?

• Four moles

• Three moles

• Two moles

• One mole

If you have one mole of ammonium carbonate, how many moles of carbonate ions do you have?

• One mole

• Four moles

• Two moles

• Three moles

Given 0.43 moles of ammonium carbonate, how many moles of ammonium ions are present?

• 1.29 moles

• 0.43 moles

• 0.86 moles

• 0.21 moles

How many moles of carbonate ions are present in 0.43 moles of ammonium carbonate?

• 0.86 moles

• 0.43 moles

• 0.21 moles

• 1.29 moles

What is the total number of ions produced when ammonium carbonate dissolves in water?

• One ion

• Two ions

• Four ions

• Three ions