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pH and pOH Concepts in Solutions

pH and pOH Concepts in Solutions

Assessment

Interactive Video

•

Chemistry, Science, Mathematics

•

9th - 10th Grade

•

Practice Problem

•

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the dissociation of 0.1M HCl and NaOH solutions, highlighting that both dissociate completely. It demonstrates how to calculate the pH of the HCl solution by taking the negative logarithm of the H+ ion concentration, resulting in a pH of 1.0. Similarly, it shows how to find the pOH of the NaOH solution by taking the negative logarithm of the OH- ion concentration, resulting in a pOH of 1.0. The tutorial further explains the relationship between pH and pOH, emphasizing that their sum must equal 14. Using this relationship, it calculates the pH of the NaOH solution as 13.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the pH of a 0.1M HCl solution?

14.0

0.1

1.0

7.0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a 0.1M NaOH solution dissociate?

Partially into Na+ and OH- ions

Completely into Na+ and OH- ions

Partially into Na+ ions only

Completely into OH- ions only

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the pOH of a 0.1M NaOH solution?

1.0

14.0

7.0

0.1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the pOH of a solution is 1, what is the pH?

14

13

7

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sum of pH and pOH in a solution?

10

0

14

7

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