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Ionic Equilibrium in Aqueous Solutions

Chemistry ⇒ Chemical Kinetics and Equilibrium

Ionic Equilibrium in Aqueous Solutions starts at 12 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Ionic Equilibrium in Aqueous Solutions. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A 0.1 M solution of a weak acid HA is 1% ionized. Calculate the concentration of H+ ions.
A solution contains 0.1 M NH3 and 0.1 M NH4Cl. Kb for NH3 is 1.8 × 10–5. Calculate the pH of the solution.
A solution has [H+] = 2 × 10–4 M. Calculate its pH.
A solution has a pOH of 4. What is its pH at 25°C?
A solution is prepared by mixing 50 mL of 0.1 M HCl and 50 mL of 0.1 M NaOH. What is the pH of the resulting solution?
Calculate the pH of a 0.02 M NaOH solution.
Calculate the pOH of a solution with [OH–] = 1 × 10–5 M.
Define the term 'common ion effect' and give an example.
Explain the difference between a strong acid and a weak acid in terms of ionization in water.
Explain why the addition of NaOH to a solution of acetic acid increases the pH.
Explain why the solubility of AgCl decreases in the presence of NaCl.
If the Ka of acetic acid is 1.8 × 10–5, calculate its pKa.
If the pH of a solution is 3, what is the concentration of H+ ions?
If the pKw of water at 40°C is 13.6, what is the pH of pure water at this temperature?
State Le Chatelier’s principle and explain its application to the solubility of salts.
State the Ostwald’s dilution law and explain its significance in ionic equilibrium.
The Ka of formic acid is 1.8 × 10–4. Calculate the degree of dissociation (α) in a 0.1 M solution.
The solubility of CaF2 in water is s mol/L. Write the expression for its solubility product (Ksp).
The solubility product (Ksp) of AgCl at 25°C is 1.6 × 10–10. Calculate its solubility in mol/L.
What is the conjugate base of HCO3–?