Acids, Bases, pH, pOH Titration Test

What is a strong base?

• A base that partially dissociates in solution

• A base that completely dissociates in solution, releasing all of its hydroxide ions (OH-)

• A base that does not dissociate in solution

• A base that only dissociates in acidic conditions

What is the pH of a neutral solution at 25°C?

• 5

• 7

• 9

• 10

What is the relationship between pH and pOH?

• pH + pOH = 14

• pH - pOH = 14

• pH * pOH = 14

• pH / pOH = 14

What is a strong acid?

• An acid that partially dissociates in solution.

• An acid that completely dissociates in solution, releasing all of its hydrogen ions (H+).

• An acid that does not dissociate in solution.

• An acid that only dissociates at high temperatures.

What is the Bronsted-Lowry definition of a base?

• A substance that donates a hydrogen ion (H+) to another substance.

• A substance that accepts a hydrogen ion (H+) from another substance.

• A substance that increases the concentration of hydroxide ions in a solution.

• A substance that reacts with acids to form salts.

What is the equivalence point in titration?

• The point where the titrant is added in excess.

• The point where the analyte solution is completely neutralized by the titrant.

• The point where the color change is observed in the solution.

• The point where the pH of the solution is exactly 7.

What is a buffer solution?

• A solution that changes pH rapidly when acids or bases are added.

• A solution that resists changes in pH when small amounts of acid or base are added, typically composed of a weak acid and its conjugate base.

• A solution that only contains strong acids and bases.

• A solution that has a constant temperature regardless of external conditions.

What is the significance of the pH of 7?

• A pH of 7 indicates a neutral solution, meaning it is neither acidic nor basic, such as pure water.

• A pH of 7 indicates a highly acidic solution, such as lemon juice.

• A pH of 7 indicates a basic solution, such as soap.

• A pH of 7 indicates a solution that is only slightly acidic, like vinegar.

What is the formula to calculate pH?

• pH = -log[H+]

• pH = log[H+]

• pH = [H+]/10

• pH = 14 - pOH

What is the effect of dilution on pH?

• Diluting an acid increases its pH, making it less acidic.

• Diluting a base increases its pH, making it more basic.

• Diluting an acid decreases its pH, making it more acidic.

• Diluting a base decreases its pH, making it less basic.