Sodium Sulfate in Aqueous Solutions

The video explores whether sodium sulfate (Na2SO4) is an electrolyte or non-electrolyte. It identifies sodium sulfate as an ionic compound, which dissolves in water to form sodium and sulfate ions. The video explains that due to its solubility and ionization, sodium sulfate is a strong electrolyte, capable of conducting electricity in solution.

What type of compound is Na2SO4?

• Metallic compound

• Molecular compound

• Covalent compound

• Ionic compound

Why is sodium sulfate expected to dissolve in water?

• Because it is a gas

• Because it is insoluble

• Because it is an ionic compound and follows solubility rules

• Because it is a covalent compound

What ions are formed when Na2SO4 dissolves in water?

• Na+ and Cl-

• Na+ and SO4 2-

• K+ and SO4 2-

• Na+ and OH-

What does the presence of ions in a solution indicate about its ability to conduct electricity?

• It will conduct electricity

• It will not conduct electricity

• It will conduct electricity only at high temperatures

• It will conduct electricity only in solid form

What is the role of the 'AQ' notation in the context of Na2SO4?

• Indicates a solid state

• Indicates a liquid state

• Indicates a gaseous state

• Indicates an aqueous solution

What conclusion is drawn about Na2SO4 in the video?

• It is a strong electrolyte

• It is not soluble in water

• It is a weak electrolyte

• It is a non-electrolyte

Which of the following best describes the behavior of Na2SO4 in water?

• It remains as a solid

• It forms a precipitate

• It evaporates

• It dissolves and dissociates into ions