Open Question
As the intermolecular attractive forces between molecules increase in magnitude, do you expect each of the following to increase or decrease in magnitude? (b) heat of vaporization,
14. Solutions
Solutions: Solubility and Intermolecular Forces
Multiple Choice
Which statement best describes why water is an effective solvent?
A
Water has a low boiling point, which enhances its ability to dissolve substances.
B
Water is nonpolar, which makes it ideal for dissolving nonpolar substances.
C
Water has a high dielectric constant, allowing it to dissolve ionic compounds effectively.
D
Water molecules are large, providing more surface area for solvation.
Verified step by step guidance1
Understand the concept of a solvent: A solvent is a substance that dissolves a solute, resulting in a solution. Water is known as the 'universal solvent' due to its ability to dissolve many substances.
Explore the properties of water: Water is a polar molecule, meaning it has a partial positive charge on one side and a partial negative charge on the other. This polarity is crucial for its solvent capabilities.
Learn about dielectric constant: The dielectric constant is a measure of a substance's ability to reduce the electrostatic forces between charged particles. Water has a high dielectric constant, which means it can effectively weaken the forces between ions in ionic compounds, facilitating their dissolution.
Consider the role of polarity: Water's polarity allows it to interact with and stabilize ions and polar molecules, making it effective at dissolving ionic compounds and polar substances.
Evaluate the given statements: The statement 'Water has a high dielectric constant, allowing it to dissolve ionic compounds effectively' is correct because it highlights the key property of water that contributes to its effectiveness as a solvent.
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