Question

Complete the following sentences using the terms: weak, strong, or non.

A bulb connected to s battery through a solution of ethanol (CH₃CH₂OH) does not light up; ethanol is a ________ electrolyte.
A bulb connected through a solution of calcium chloride (CaCl₂) lights up brightly; calcium chloride is a ____________ electrolyte.

Answer 1

A weak electrolyte partially dissociates into ions when dissolved in a solution, while a strong electrolyte completely dissociates into ions.

Step-by-step explanation:

A weak electrolyte is a substance that only partially dissociates into ions when dissolved in a solution. This means that it produces a small number of ions compared to the total number of molecules in the solution. An example of a weak electrolyte is acetic acid (CH3COOH) when dissolved in water:

CH3COOH (aq) ↔ CH3COO- (aq) + H+ (aq)

A strong electrolyte, on the other hand, is a substance that completely dissociates into ions when dissolved in a solution. This means that it produces a large number of ions compared to the total number of molecules in the solution. An example of a strong electrolyte is sodium chloride (NaCl) when dissolved in water:

NaCl (aq) ↔ Na+ (aq) + Cl- (aq)