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Solved: Write reactions showing how each of the buffers in would neutralize added NaOH

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 86P Chapter 14

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 86P

Problem 86P

Write reactions showing how each of the buffers in Problem 1 would neutralize added NaOH.

Problem 1

Determine whether or not each mixture is a buffer.

(a) HBr and NaCl

(b) HCHO2 and NaCHO2

(c) HCl and HBr

(d) KOH and NH3

Step-by-Step Solution:

Problem 86P

Write reactions showing how each of the buffers in Problem 1 would neutralize added NaOH.

Determine whether or not each mixture is a buffer.

(a) HBr and NaCl

(b) HCHO2 and NaCHO2

(c) HCl and HBr

(d) KOH and NH3

                                                      Step by Step Solution

Step 1 of 4

A buffer solution can be composed of a weak base and its conjugate acid or a weak acid and its conjugate base.

However , it resists pH change by neutralizing added acid or an added base.

(a)

The given mixture is HBr and NaCl. Here, HBr is acid and NaCl is a salt which is obtained from a mixture of strong acid and strong base.

So, it is not a conjugate acid-base pair. As a result, the mixture cannot form a buffer solution

Therefore, the mixture is not a buffer.

__________________________________________________________________________

Step 2 of 4

Chapter 14, Problem 86P is Solved
Step 3 of 4

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Solved: Write reactions showing how each of the buffers in would neutralize added NaOH