객관식
Why does table salt (NaCl) dissolve readily in water?
240
views
6. Chemical Quantities & Aqueous Reactions
Solubility Rules
객관식
According to solubility rules, which of the following compounds will dissolve faster in water at room temperature?
A
PbSO4
B
CaCO3
C
AgCl
D
NaCl
검증된 단계별 안내1
Step 1: Understand that solubility rules help predict whether a compound is soluble or insoluble in water. Compounds that are highly soluble tend to dissolve faster because more ions separate into solution quickly.
Step 2: Recognize that PbSO4, CaCO3, and AgCl are generally considered sparingly soluble or insoluble salts, meaning they have low solubility in water at room temperature.
Step 3: Recall that NaCl is a soluble salt because all common sodium salts are soluble in water, which means NaCl dissociates readily into Na⁺ and Cl⁻ ions.
Step 4: Since NaCl is highly soluble, it will dissolve faster in water compared to PbSO4, CaCO3, and AgCl, which have limited solubility and dissolve more slowly.
Step 5: Therefore, by applying solubility rules and understanding ionic dissociation, you can conclude that NaCl dissolves faster in water at room temperature than the other listed compounds.
관련 영상
관련 실천
