Ammonia in Aqueous Solutions

The video explores whether NH3 (ammonia) is an electrolyte. Ammonia dissolves in water, forming an aqueous solution and producing ions, which conduct electricity. However, only a small percentage of ammonia dissociates into ions, making it a weak electrolyte. The video emphasizes memorizing that ammonia is a weak base and a weak electrolyte, a common topic in chemistry.

What is the primary question addressed in the video regarding ammonia?

• Whether ammonia is an electrolyte or a non-electrolyte.

• Whether ammonia is a solid or liquid.

• Whether ammonia is acidic or basic.

• Whether ammonia is organic or inorganic.

What happens when ammonia is dissolved in water?

• It forms an aqueous solution with ions.

• It evaporates immediately.

• It remains unchanged.

• It forms a solid precipitate.

What role do ions play in the conductivity of an aqueous solution?

• They change the color of the solution.

• They prevent electricity from passing through.

• They allow electricity to be conducted.

• They make the solution evaporate.

Which ions are formed when ammonia reacts with water?

• Sodium and chloride ions.

• Calcium and carbonate ions.

• Ammonium and hydroxide ions.

• Hydrogen and oxygen ions.

What is the equilibrium reaction set up by ammonia in water?

• Ammonia reacts to form calcium carbonate.

• Ammonia reacts to form hydrogen and oxygen gas.

• Ammonia reacts to form ammonium and hydroxide ions.

• Ammonia reacts to form sodium and chloride ions.

What percentage of ammonia converts into ions in a one molar solution?

• 10%

• 50%

• 0.42%

• 100%

Why is ammonia considered a weak electrolyte?

• Because it forms a large number of ions.

• Because it is a strong acid.

• Because it does not dissolve in water.

• Because it forms very few ions.

What is the significance of the 0.42% dissociation of ammonia in water?

• It means ammonia does not dissolve in water.

• It shows ammonia is a weak electrolyte.

• It indicates ammonia is a strong electrolyte.

• It suggests ammonia is a strong acid.

What is the recommended classification of ammonia in terms of its basicity and electrolytic nature?

• Strong base and strong electrolyte.

• Weak base and weak electrolyte.

• Strong acid and strong electrolyte.

• Weak acid and weak electrolyte.