Calculate Concentrations in a Buffer (Example Problem)

Calculate Concentrations in a Buffer (Example Problem)

Assessment

Interactive Video

Science, Chemistry

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains how to calculate the number of moles of conjugate acid and base in a phosphate buffer solution using the Henderson-Hasselbalch equation. It covers the setup of a buffer problem, the calculation of moles for both conjugate acid and base, and the conversion of these moles into mass for practical lab preparation. The tutorial also discusses how to verify calculations by comparing pH and pKa values, ensuring the buffer is prepared correctly.

Read more

7 questions

Show all answers

1.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine which pKa value to use when preparing a buffer at a specific pH?

Evaluate responses using AI:

OFF

2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the formula to calculate the number of moles of conjugate acid in a buffer solution?

Evaluate responses using AI:

OFF

3.

OPEN ENDED QUESTION

3 mins • 1 pt

What calculations are necessary to find the number of moles of conjugate base in a buffer?

Evaluate responses using AI:

OFF

4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the relationship between the concentrations of conjugate acid and base and the pH of the solution?

Evaluate responses using AI:

OFF

5.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the pKa value in relation to the pH of the buffer solution?

Evaluate responses using AI:

OFF

6.

OPEN ENDED QUESTION

3 mins • 1 pt

How can you check if your calculated pH is consistent with the concentrations of conjugate acid and base?

Evaluate responses using AI:

OFF

7.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the process of converting moles of a substance into mass for buffer preparation.

Evaluate responses using AI:

OFF

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?

Discover more resources for Science