Barium Sulfate and Electrolytes

The video explores whether barium sulfate (BaSO4) is an electrolyte. It defines electrolytes as substances that dissolve in water to produce ions, enabling the solution to conduct electricity. BaSO4 is identified as an ionic compound, but it is largely insoluble in water, meaning it produces very few ions. Therefore, BaSO4 is classified as a weak electrolyte. The video concludes with a recap of these points.

What is an electrolyte?

• A substance that produces ions in a polar solvent

• A substance that dissolves in any solvent

• A non-ionic compound

• A substance that does not conduct electricity

What type of compound is barium sulfate?

• Covalent

• Metallic

• Non-metallic

• Ionic

Which of the following is generally true about sulfates?

• They are always weak electrolytes

• They never dissociate in water

• They are always insoluble

• They are generally soluble

Why is barium sulfate considered a weak electrolyte?

• It is a non-ionic compound

• It produces only a few ions in water

• It does not produce any ions

• It completely dissociates in water

What ions are formed when barium sulfate dissociates?

• Ba2+ and SO4 2-

• Ba+ and SO4-

• Ba3+ and SO4 3-

• Ba2+ and SO3 2-

What is the solubility status of barium sulfate in water?

• Highly soluble

• Slightly soluble

• Insoluble

• Completely soluble

Which group on the periodic table does barium belong to?

• Group 2

• Group 1

• Group 4

• Group 3

What is the charge on the sulfate ion?

• 1-

• 2-

• 1+

• 2+

What is the main takeaway about barium sulfate from the video?

• It is highly soluble in water

• It is a non-electrolyte

• It is a weak electrolyte due to limited ion production

• It is a strong electrolyte