Acid and Base Strength and Concentration
Chemistry ⇒ Acids, Bases, and Salts
Acid and Base Strength and Concentration starts at 9 and continues till grade 12.
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See sample questions for grade 12
A 0.01 M solution of NaOH is prepared. Calculate the [OH-] in the solution.
A 0.1 M solution of a weak acid has a pH of 4. What is the [H+] in the solution?
A solution has a hydrogen ion concentration of 1 × 10-7 M. What is its pH?
A solution has a pH of 3. Is it acidic, basic, or neutral?
A solution has a pH of 9. Is it acidic, basic, or neutral?
A solution has a pOH of 2. What is its pH?
A student prepares two solutions: Solution A is 0.01 M HCl and Solution B is 1 M acetic acid. Which solution has a lower pH?
Calculate the pH of a 0.01 M H2SO4 solution, assuming complete dissociation of the first proton.
Calculate the pH of a 1 × 10-3 M HNO3 solution.
Calculate the pOH of a solution with [OH-] = 1 × 10-5 M.
Define acid strength.
Describe how dilution affects the pH of a strong acid.
Describe the difference between a strong base and a concentrated base.
Explain the difference between acid strength and acid concentration.
Explain why a concentrated solution of a weak acid can still be corrosive.
Explain why a weak acid has a higher pH than a strong acid of the same concentration.
Explain why strong acids are good conductors of electricity.
State the relationship between pH and pOH in aqueous solutions at 25°C.
What is the Ka expression for the dissociation of acetic acid (CH3COOH) in water?
A 0.05 M solution of a weak base has a pOH of 4.5. Calculate the base dissociation constant (Kb) for this base.
