Chitinase is a protein that breaks down chitin, a primary component of the cell wall in fungi, scales in fish and exoskeletons of arthropods. The activity of chitinase extracted from a plant was shown to be optimum at pH 5. You were tasked to prepare 300 mL of 150 mM buffer solution for further analysis of the extracted chitinase. REAGENTS Ka 2.5M Acetic acid Solid NaOAc•3H2O [136.08g/mol] 1.76 x 10-5 2.5M NH3 Solid NH4Cl [53.49g/mol] 5.6 x 10-10 2.5M Lactic acid Solid sodium lactate [112.06g/mol] 4.0 x 10-5 5 M HCl 5M NaOH What are the moles of the (1) acid and (2) base components, given the following reagents? What is the mass/volume of the components needed to prepare the buffer solution?
Chitinase is a protein that breaks down chitin, a primary component of the cell wall in fungi, scales in fish and exoskeletons of arthropods. The activity of chitinase extracted from a plant was shown to be optimum at pH 5. You were tasked to prepare 300 mL of 150 mM buffer solution for further analysis of the extracted chitinase. REAGENTS Ka 2.5M Acetic acid Solid NaOAc•3H2O [136.08g/mol] 1.76 x 10-5 2.5M NH3 Solid NH4Cl [53.49g/mol] 5.6 x 10-10 2.5M Lactic acid Solid sodium lactate [112.06g/mol] 4.0 x 10-5 5 M HCl 5M NaOH What are the moles of the (1) acid and (2) base components, given the following reagents? What is the mass/volume of the components needed to prepare the buffer solution?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.BCP
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Chitinase is a protein that breaks down chitin, a primary component of the cell wall in fungi, scales in fish and exoskeletons of arthropods. The activity of chitinase extracted from a plant was shown to be optimum at pH 5. You were tasked to prepare 300 mL of 150 mM buffer solution for further analysis of the extracted chitinase.
|
REAGENTS |
Ka |
|
|
2.5M Acetic acid |
Solid NaOAc•3H2O [136.08g/mol] |
1.76 x 10-5 |
|
2.5M NH3 |
Solid NH4Cl [53.49g/mol] |
5.6 x 10-10 |
|
2.5M Lactic acid |
Solid sodium lactate [112.06g/mol] |
4.0 x 10-5 |
|
5 M HCl |
5M NaOH |
- What are the moles of the (1) acid and (2) base components, given the following reagents?
- What is the mass/volume of the components needed to prepare the buffer solution?
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