Multiple Choice
Which of the following substances is most likely to dissolve easily in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following ionic compounds will dissolve most rapidly in water at room temperature?
A
BaSO_4
B
AgCl
C
CaCO_3
D
NaNO_3
Verified step by step guidance1
Understand that the rate at which an ionic compound dissolves in water depends on its solubility and the strength of the ionic interactions in the solid lattice.
Recall that compounds with high solubility in water dissociate quickly into their ions, leading to rapid dissolution.
Compare the solubility of each compound: BaSO_4, AgCl, CaCO_3, and NaNO_3, by considering their solubility product constants (K_sp) or general solubility trends.
Recognize that NaNO_3 is a highly soluble ionic compound because both Na^+ and NO_3^- ions interact favorably with water molecules, leading to rapid dissolution.
Conclude that among the given options, NaNO_3 will dissolve most rapidly in water at room temperature due to its high solubility and weaker lattice energy compared to the other compounds.
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