Chemistry · Ionic equilibrium: Weak and strong electrolytes, ionization of electrolytes
When _{2} \) attains solubility equilibrium, the:
When \( C a(O H)_{2} \) attains solubility equilibrium, the:
- A. solution is saturated
- B. \( p H \) will be less than 7
- C. trial \( K_{s p} \) is less than the \( K_{s p} \)
- D. concentrations of the ions are equal
Step-by-step solution
At solubility equilibrium, the solution is saturated with the solute, meaning no more solute can dissolve. For Ca(OH)2, at equilibrium, the solution is saturated. Option B is incorrect because Ca(OH)2 is a base, so pH > 7. Option C is incorrect because at equilibrium, the trial Ksp equals Ksp. Option D is incorrect because the dissociation produces Ca2+ and 2 OH-, so concentrations are not equal.
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