Calculations of pH, pOH, [H+] and [OH-]

pH Problem Solving Diagram

The pH of a 0.0001-M solution of NaOH is:
1. 4.0
2. -4.0
3. 11.0
4. 10.0
What is the [OH^-] of a solution whose [H⁺] = 0.001M
1. 1 x 10^-3 M
2. 1 x 10^-11 M
3. 1 x 10¹¹ M
4. 1 x 10³ M
The [H⁺] of a solution is 8.34 x 10^-5 mole/liter. The pH of this solution lies between:
1. 2 and 3
2. 3 and 4
3. 4 and 5
4. 5 and 6
Which of the following hydrogen ion concentrations represents a solution with acidic properties?
1. 1 x 10^-2 M
2. 1 x 10^-8 M
3. 1 x 10^-10 M
4. 1 x 10^-14 M
The [H⁺] of an acid solution that has a pH of 3.0 is:
1. 1 x 10³ M
2. 1 x 10^-3 M
3. 1 x 10¹¹ M
4. 1 x 10^-11 M
The pH of a 0.01-M solution of HCl is:
1. 2.0
2. -2.0
3. 12.0
4. -12.0
The pH of a solution is 3.0. What is the [OH^-]?
1. 11 M
2. 3 M
3. 1 x 10^-3 M
4. 1 x 10^-11 M
What is the pH of a 0.001 M NaOH solution?
1. 3.0
2. -3.0
3. 10.0
4. 11.0
The pH of a softdrink is determined to be 4.0. What is the [OH^-] of the drink?
1. 10 M
2. 4 M
3. 1 x 10^-4 M
4. 1 x 10^-10 M
In aqueous solutions, [H⁺][OH^-] is equal to:
1. 1 x 10^-7 M
2. 1 x 10^-14 M
3. 7 M
4. 1 x 10¹⁴ M
The normal pH of human blood is 7.4. Human blood is:
1. slightly basic
2. slightly acidic
3. strongly basic
4. strongly acidic
What is the pOH of a solution whose pH is 3.45?
1. -3.45
2. 17.45
3. 10.55
4. 3.45
What is the pH of a solution whose [H⁺] is 2.75 x 10^-4 M?
1. 3.561
2. 3.636 x 10^-11
3. 3.64
4. 10.439
What is the pOH of a solution whose [H⁺] is 2.75 x 10^-4 M?
1. 3.561
2. 3.636 x 10^-11
3. 3.64
4. 10.439
What is the pOH of a solution whose [OH^-] is 9.31 x 10^-2 M?
1. 1.031
2. 12.969
3. 1.07 x 10^-13
4. 15.031
What is the pH of a solution whose [OH^-] is 9.31 x 10^-2 M?
1. 1.031
2. 12.969
3. 1.07 x 10^-13
4. 15.031
What is the [H⁺] of a solution whose [OH^-] is 9.31 x 10^-2 M?
1. 9.31 x 10^-16 M
2. 9.31 x 10¹² M
3. 1.07 x 10^-13 M
4. 10.44
What is the pH of a solution whose pOH is 11.09?
1. 2.91
2. 15.09
3. 25.09
4. -11.09
What is the [H⁺] of a solution whose pH = 5.43 ?
1. 3.7 x 10^-6 M
2. 2.7 x 10^-9 M
3. 8.6
4. 269153
What is the [OH^-] of a solution whose pH = 5.43 ?
1. 3.7 x 10^-6 M
2. 2.7 x 10^-9 M
3. 8.6
4. 269153
What is the [OH^-] of a solution whose pOH = 2.86 ?
1. 1.4 x 10^-3 M
2. 7.2 x 10^-12 M
3. 724 M
4. 3.5 x 10^-15 M
What is the [H⁺] of a solution whose pOH = 2.86 ?
1. 1.4 x 10^-3 M
2. 7.2 x 10^-12 M
3. 724 M
4. 3.50 x 10^-15 M