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Chapter 1 - Transition Elements and Iron Metallurgy

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Lesson 2: Ionic Equilibrium, pH Scale, Hydrolysis and Solubility Product (Ksp) — Picture questions (exam style)

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  • Questions count: 3
  • Passing grade: 60%
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1.
In the equilibrium shown, which option gives two compounds each of which lowers the solubility of PbBr₂?
In the equilibrium shown, which option gives two compounds each of which lowers the solubility of PbBr₂?
NaNO₃ ، KNO₃
Pb(NO₃)₂ ، NaNO₃
NaNO₃ ، NaBr
Pb(NO₃)₂ ، NaBr
2.
100 mL of 1.00×10−5 M cation solution is mixed with 100 mL of 1.00×10−4 M anion solution to form AgBr (Ksp = 5.00×10−9). What happens?
100 mL of 1.00×10⁻⁵ M cation solution is mixed with 100 mL of 1.00×10⁻⁴ M anion solution to form AgBr (Ksp = 5.00×10⁻⁹). What happens?
a precipitate forms because Q < Ksp
no precipitate because Q < Ksp
cannot tell without the temperature
a precipitate forms because Q > Ksp
3.
In the equilibrium shown, which option gives two compounds each of which lowers the solubility of Ag₂CrO₄?
In the equilibrium shown, which option gives two compounds each of which lowers the solubility of Ag₂CrO₄?
NaNO₃ ، KNO₃
AgNO₃ ، NaNO₃
NaNO₃ ، K₂CrO₄
AgNO₃ ، K₂CrO₄
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