In demonstrations of strong and weak electrolytes and nonelectrolytes,a lightbulb apparatus that shows how much a solution conducts electricity by the brightness of the light is often used.When pure water is tested,the bulb does not light.Which one of the following aqueous solutions causes the bulb to burn dimly but not brightly?

Question

Quizplus · Accepted Answer

Acetic acid, CH3COOH, is a weak electrolyte, meaning it partially dissociates into ions in water. This results in a slight conductivity and causes the bulb to burn dimly. The other options are either strong electrolytes, which completely dissociate into ions, allowing for high conductivity and a bright bulb, or nonelectrolytes, which do not ionize and do not allow for any conductivity, resulting in the bulb not lighting at all.

In Demonstrations of Strong and Weak Electrolytes and Nonelectrolytes,a Lightbulb