Calculate Concentrations in a Buffer (Derivation)

Calculate Concentrations in a Buffer (Derivation)

Assessment

Interactive Video

Science, Chemistry

University

Hard

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The video tutorial explains how to calculate the concentrations of conjugate acid and base in a buffer system using the Henderson Hasselbalch equation and the mass balance equation. It covers the importance of knowing the pH and PKA, and provides a step-by-step guide to solving these equations. Simplifying assumptions are discussed to make calculations more manageable, and the tutorial concludes with methods to determine the moles of conjugate acid and base.

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10 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you calculate the concentration of conjugate base and conjugate acid in a buffer?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the Henderson-Hasselbalch equation used for?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the role of equilibrium constants in buffer systems?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the charge of a species change during deprotonation in a buffer system?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the pKa value in buffer preparation?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the relationship between pH and pKa for maximum buffering capacity.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the mass balance equation in the context of buffer solutions?

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