Which chemicals in the table above act as a buffer? Support your claim using what you know about buffers and how they work. Table 1: Composition of minimal media.The listed quantities are for 1 L of media.Media AMedia BChemical(Original)(New)6.8 g13.6 gN22HPO4KH2PO43g0.5g18NaCI0.25 g0.5 gMgSO4 • 7H20(NH4)2SO41g1gd-Glucose3 g38Trace metals0.5 mL0.5 mLsolution1 mL1 mLVitamins

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Which chemicals in the table above act as a buffer? Support your claim using what you know about buffers and how they work.

Table 1: Composition of minimal media.
The listed quantities are for 1 L of media.
Media A
Media B
Chemical
(Original)
(New)
6.8 g
13.6 g
N22HPO4
KH2PO4
3g
0.5g
18
NaCI
0.25 g
0.5 g
MgSO4 • 7H20
(NH4)2SO4
1g
1g
d-Glucose
3 g
38
Trace metals
0.5 mL
0.5 mL
solution
1 mL
1 mL
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Expert Solution

Step 1

An aqueous solution which contain a mixture of weak acid and its conjugate base or vice versa is called a buffer solution. Usually buffer solutions are used for keeping pH nearly at constant value.

The buffer solutions are work by neutralizing any added acid or base to maintain the pH of the solution relatively stable. Such conditions are very important for reactions that requires specific and stable pH ranges.

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