In a Demonstration of Strong Electrolytes, Weak Electrolytes, and Nonelectrolytes

question 7

Multiple Choice

In a demonstration of strong electrolytes, weak electrolytes, and nonelectrolytes, Professor Popsnorkle used a lightbulb apparatus that showed how much a solution conducted electricity by the brightness of the lightbulb. When pure water was tested, the bulb did not light. Then Professor Popsnorkle tested the following aqueous solutions. Which one caused the bulb to burn the brightest?

• A)table salt, NaCl
• B)ethanol, CH₃CH₂OH
• C)table sugar, C₁₂H₂₂O₁₁
• D)acetic acid, CH₃COOH
• E)methanol, CH₃OH

Calculate and interpret marginal means in factorial designs.

Identify the presence of significant main effects based on differences between marginal means.

Understand the impact of factorial designs on the interpretation of variable effects.

Learn the procedure to calculate the total number of combinations in a factorial design.

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