Question 1

Sodium hydroxide is a strong base. What is the pH of a 0.02M sodium hydroxide solution?

Accepted Answer

12.3

Answer

2

Answer

1.7

Answer

12

Question 2

You are presented with a solution that has a pOH of 2.13. What is the pH of this solution?

Accepted Answer

11.87

Answer

10^-2.13

Answer

10^2.13

Answer

2.13

Question 3

What is the pH for a 0.05M solution of hydrochloric acid?

Accepted Answer

1.3

Answer

-0.3

Answer

0.05

Answer

6.95

Question 4

What is the pOH of a solution containing a hydrogen ion concentration of 1 x 10^-8 M?

Accepted Answer

6

Answer

8

Answer

cannot be calculated

Answer

5

Question 5

A sample of gastric juice has a pH of 2.5.  What is the hydrogen ion concentration in this secretion?

Accepted Answer

0.003 M

Answer

0.0025 M

Answer

0.025 M

Answer

0.03 M

Question 6

Calculate the pOH and hydroxide ion concentration in an organism whose blood pH was measured to be 8.00 at room temperature.

Accepted Answer

POH = 6, [OH-] =1 x 10^-6

Answer

POH = 8, [OH-] =1 x 10^-6

Answer

POH = 8, [OH-] =1 x 10^-8

Answer

POH = 6, [OH-] =1 x 10^-8

Question 7

Calculate the pH of the solution containing 1 x 10^-5 of Hydroxide ion

Accepted Answer

9

Answer

7

Answer

14

Answer

5

Question 8

Calculate the pOH of a .0750M HCl solution

Accepted Answer

12.9

Answer

1.1

Answer

5.9

Answer

8.1

Question 9

There are __________ hydrogen ions in a solution with a pH of 3 than in a solution with a pH of 6.

Accepted Answer

1000 times more

Answer

3 times less

Answer

3 times more

Answer

1000 times less

Question 10

A scientist is studying an aqueous sample of X and finds that the hydroxide concentration is 10^−3M. Which of the following is true?

Accepted Answer

The pH of the solution is 11

Answer

The concentration of [OH-] is 10^11

Answer

The pH of the solution is 3

Answer

The pOH of the solution is 11

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