Buffer Solution Quiz

What is a buffer solution?

• A buffer solution is a concentrated solution of a single substance.

• A buffer solution is a solution that only reacts with acids.

• A buffer solution is a solution that always changes pH drastically.

• A buffer solution is a solution that resists changes in pH when small amounts of acid or base are added.

What are the components of a buffer solution?

• Salt and water

• Strong acid and its conjugate base

• Weak acid and its conjugate base, or weak base and its conjugate acid

• Weak acid and strong base

Explain the concept of buffer capacity.

• Buffer capacity is the ability of a buffer solution to resist changes in pH when a strong acid or base is added.

• Buffer capacity is the resistance of a buffer to temperature changes.

• Buffer capacity is the measure of how much liquid a buffer can hold.

• Buffer capacity is the ability of a buffer to change color when a strong acid or base is added.

How does a buffer solution resist changes in pH?

• By releasing more ions into the solution

• By containing a weak acid and its conjugate base (or a weak base and its conjugate acid), which react with added acids or bases to minimize pH changes.

• By increasing the temperature of the solution

• By diluting the solution with water

What is the Henderson-Hasselbalch equation used for?

• Calculating the pH of a buffer solution

• Predicting reaction rates

• Solving quadratic equations

• Balancing chemical equations

How can you prepare a buffer solution?

• Dilute a concentrated acid with water

• Mix a weak acid and its conjugate base in a specific ratio

• Mix a strong acid and its conjugate base in a specific ratio

• Combine a weak acid and a strong base in equal amounts

Discuss the importance of buffer solutions in biological systems.

• Buffer solutions are important in biological systems for maintaining stable pH levels and preventing drastic changes that could disrupt biochemical reactions.

• Buffer solutions are only necessary in non-living systems and not in biological systems.

• Buffer solutions have no impact on maintaining stable pH levels in biological systems.

• Buffer solutions are used to increase the rate of biochemical reactions in biological systems.

What is the pH range of a buffer solution?

• Within one unit of the pKa value of the weak acid or base in the buffer

• Exactly at the pKa value

• Outside the pKa range

• Between 0 and 14

What happens to the pH of a buffer solution when a strong acid is added?

• The pH of a buffer solution will remain constant when a strong acid is added.

• The pH of a buffer solution will become basic when a strong acid is added.

• The pH of a buffer solution will increase significantly when a strong acid is added.

• The pH of a buffer solution will decrease slightly when a strong acid is added.

What happens to the pH of a buffer solution when a strong base is added?

• The pH of a buffer solution becomes neutral when a strong base is added.

• The pH of a buffer solution decreases slightly when a strong base is added.

• The pH of a buffer solution remains constant when a strong base is added.

• The pH of a buffer solution increases significantly when a strong base is added.