Look again at the table in Part B, repeated below.
The student is told that one of the four solids tested is actually barium chloride, BaCl2. Which of the solids could be BaCl2?
An electrolyte is a substance that when dissolved in water, the solution will conduct electricity. A solution that conducts electricity well is said to contain a strong electrolyte. A solution that conducts electricity poorly even when a significant quantity of the solute is present contains a weak electrolyte. In contrast, a substance that does not conduct electricity when dissolved in water is a nonelectrolyte.
Watch the video about the electrolytic properties of sodium chloride, NaCl, and sugar.
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Based on our data, we think this problem is relevant for Professor Man's class at Marymount Manhattan College.