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Determine the pH of each solution and classify it as acidic, basic, or neutral.(a) pOH =

Chapter 14, Problem 84P

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QUESTION:

Problem 84P

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

(a) pOH = 12.5

(b) pOH = 5.5

(c) pOH = 0.55

(d) pOH = 7.98

Questions & Answers

QUESTION:

Problem 84P

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

(a) pOH = 12.5

(b) pOH = 5.5

(c) pOH = 0.55

(d) pOH = 7.98

ANSWER:

Problem 84P

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

(a) pOH = 12.5

(b) pOH = 5.5

(c) pOH = 0.55

(d) pOH = 7.98

                                                               Step by Step Solution

Step 1 of 3

-  If a solution has pH 1 to 7 , then hydronium ion concentration dominates the hydroxide ion concentration, so the solution will be acidic in nature.

-  If the value of pH is 7, then hydronium ion concentration equals the hydroxide ion concentration, so the solution will be neutral.

-  If the value of pH is 7 to 14 , then hydroxide ion concentration dominates the hydronium ion  concentration, so the solution will be basic.

-  pH can be calculated by the following equation.

                                 

(a)

The given value - pOH= 12.5

Let’s calculate thepH value of the solution;

                                                   

                                                           

The  pH value is less than 7, hence the solution is acidic.

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