Understanding Buffer Solutions

Understanding Buffer Solutions

12th Grade

15 Qs

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Understanding Buffer Solutions

Understanding Buffer Solutions

Assessment

Quiz

Others

12th Grade

Practice Problem

Hard

Created by

Aderaw Adane

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a buffer solution?

A buffer solution is a solution that resists changes in pH upon the addition of small amounts of acid or base.

A buffer solution is a solution that changes pH dramatically when acid or base is added.

A buffer solution is a type of solvent used for dissolving solids.

A buffer solution is a mixture that only contains water and salt.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a buffer solution maintain pH?

A buffer solution maintains pH by increasing temperature.

A buffer solution only works with strong acids.

A buffer solution maintains pH by neutralizing added acids or bases.

A buffer solution changes pH by diluting the solution.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the components of a buffer solution?

A weak acid and its conjugate base, or a weak base and its conjugate acid.

A strong acid and its conjugate base

A salt and a strong acid

A weak acid and a strong base

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the difference between a strong acid and a weak acid in the context of buffers.

A strong acid only partially dissociates, while a weak acid fully dissociates.

A strong acid fully dissociates in solution, while a weak acid only partially dissociates, making weak acids essential for buffer systems.

Weak acids are not effective in maintaining pH levels.

Buffers are only made from strong acids and bases.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role do conjugate acids and bases play in buffer solutions?

Conjugate acids and bases increase the pH of the solution.

Conjugate acids and bases help maintain pH stability in buffer solutions by neutralizing added acids and bases.

Buffer solutions do not require conjugate acids or bases to function.

Conjugate acids and bases only affect the color of the solution.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you prepare a buffer solution?

Mix a weak acid and its conjugate base or a weak base and its conjugate acid in the correct ratio.

Combine a strong acid with a weak base in any ratio.

Use only water to create the buffer solution.

Mix a strong acid and a strong base in equal parts.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the Henderson-Hasselbalch equation?

pH = pKa - log([A-]/[HA])

pH = log([HA]/[A-]) + pKa

pH = pKa + [A-] - [HA]

pH = pKa + log([A-]/[HA])

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