Each of the following aqueous solutions was tested using the conductivity apparatus shown below. Predict whether the light bulbs in each would result in bright, dim, or dark.

(a) 0.25 M sucrose

(b) 0.25 M phosphoric acid

(c) 0.25 M potassium nitrate

The following diagram depicts aqueous solutions of three acids represented by HX (X = A, B, or C). Water molecules are disregarded for simplicity. Identify the strongest acid and the weakest acid among the three.

Choose a statement that is TRUE.

a) A weak acid or base is considered a weak electrolyte because the solution contains mostly ionized particles

b) A solution that contains mostly partially ionized molecules is considered a strong electrolyte

c) A strong electrolyte is a substance that completely ionizes in solution

d) Weak electrolytes are very reactive substances

Classify the following as: strong electrolyte, weak electrolyte or non-electrolyte.

CH₃COOH   ______________

HCl               ______________

FeBr₂           _______________