Multiple Choice
Which of the following best describes the solubility of a solute in a particular solvent?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following best explains why sugar (C12H22O11) dissolves easily in water?
A
Sugar is an ionic compound and dissociates into ions in water.
B
Sugar forms hydrogen bonds with water molecules, allowing it to dissolve readily.
C
Water is nonpolar and dissolves all nonpolar substances like sugar.
D
Sugar reacts chemically with water to form a new compound.
Verified step by step guidance1
Identify the nature of sugar (C12H22O11): it is a molecular compound composed of covalently bonded atoms, not an ionic compound.
Recall that water is a polar solvent, meaning it has partial positive and negative charges due to its molecular structure.
Understand the principle 'like dissolves like': polar substances tend to dissolve well in polar solvents because of intermolecular interactions.
Recognize that sugar molecules have multiple hydroxyl (-OH) groups capable of forming hydrogen bonds with water molecules.
Conclude that sugar dissolves easily in water because it forms hydrogen bonds with water, facilitating its dissolution without dissociating into ions or reacting chemically.
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