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Solved: Determine the pH of each solution and classify it as acidic, basic, or

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

Solution for problem 83P 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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1
Problem 83P

Problem 83P

Determine the pH of each solution and classify it as acidic, basic, or neutral.

(a) pOH = 8.5

(b) pOH = 4.2

(c) pOH = 1.7

(d) pOH = 7.0

Step-by-Step Solution:
Step 1 of 3

Solution: Here, we are going to determine the pH of the given solution and classify them as acidic, basic or neutral.

Step1:

pH is the negative logarithm to base 10 of hydrogen ion concentration whereas pOH is the negative logarithm to base 10 of hydroxyl ion concentration, i.e.,

 pOH =  - log[OH- ] and pH = - log[H+ ]

And pH + pOH =14

We can distinguish acidic, neutral and basic aqueous solutions by the relative values of their pH

                        Acidic: pH < 7

                        Neutral: pH = 7

                        Basic: pH > 7

Step2:

  1. Given, pOH = 8.5

Therefore pH = 14 - pOH

                = 14 - 8.5

                = 5.5

Since, pH < 7, therefore, the solution is acidic.

    b)        Given, pOH = 4.2

Therefore pH = 14 - pOH

                = 14 - 4.2

                = 9.8

Since, pH > 7, therefore, the solution is basic.

   c)        Given, pOH = 1.7

Therefore pH = 14 - pOH

                = 14 - 1.7

                = 12.3

Since, pH > 7, therefore, the solution is basic.

   d)        Given, pOH = 7.0

Therefore pH = 14 - pOH

                = 14 - 7.0

                = 7.0

Since, pH = 7, therefore, the solution is neutral.

                                                --------------------------

Step 2 of 3

Chapter 14, Problem 83P is Solved
Step 3 of 3

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

Since the solution to 83P from 14 chapter was answered, more than 380 students have viewed the full step-by-step answer. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. The full step-by-step solution to problem: 83P from chapter: 14 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. This full solution covers the following key subjects: pOH, determine, classify, basic, neutral. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. The answer to “Determine the pH of each solution and classify it as acidic, basic, or neutral.(a) pOH = 8.5(b) pOH = 4.2(c) pOH = 1.7(d) pOH = 7.0” is broken down into a number of easy to follow steps, and 26 words.

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Solved: Determine the pH of each solution and classify it as acidic, basic, or