Multiple Choice
A solution is saturated in both nitrogen gas and potassium bromide at 75°C. When the solution is cooled to room temperature, what is most likely to happen?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following ionic salts is generally soluble in water according to solubility rules?
A
NaNO3
B
PbSO4
C
AgCl
D
CaCO3
Verified step by step guidance1
Identify the solubility rules for common ionic compounds in water. Generally, nitrates (NO₃⁻) are soluble, while sulfates (SO₄²⁻), chlorides (Cl⁻), and carbonates (CO₃²⁻) have exceptions.
Examine the given compounds: NaNO₃, PbSO₄, AgCl, and CaCO₃.
Apply the solubility rule for nitrates: Compounds containing the nitrate ion (NO₃⁻) are soluble in water without exceptions.
Apply the solubility rule for sulfates: Most sulfates are soluble, but PbSO₄ is an exception and is insoluble.
Apply the solubility rule for chlorides and carbonates: AgCl is insoluble due to the presence of silver, and CaCO₃ is generally insoluble as most carbonates are.
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