Calculate pH and pOH Practice

If a solution has a concentration of hydrogen ions of 1 x 10^-5 mol/L, what is the pH of the solution?

• -5

• 1

• 5

• 10

What is the pH of a 1 x 10^-8 M solution of HNO₃?

• 8
• 6
• 7
• 7.5

If the pH of a solution is 5 the [H+] is

• 1.0 x 10⁵  M
• 1.0 x 10⁹  M
• 5.0 x 10¹  M
• 1.0 x 10^-5  M

If the pH of a solution is 5.6 the pOH is

• 6.5
• 12.4
• 8.4
• 5.6

If the [OH-] of a solution is 2.7 x 10^-4 mol/L the pOH of the solution is

• 10.44

• 3.57

• 1.00

• -4.43

What is the [H+] if the pH is 4.0?

• 1.0 x 10-10  M
• 1.0 x 10-4  M
• 1.0 x 10-14  M
• 1.0 x 10-7  M

What is the [OH-] if the pH is 4.9?

• 7.94 x 10-10 M
• 1.0 x 10-4  M
• 7.94 x 10-14 M
• 4.9 x 10-10 M

Ammonia has a pH of 12.  Ammonia is __________.

• an acid
• a base
• an element
• a metal

If the solution of HNO₃ has a pH of 8 and a pOH of 6. Is it an acid, base, or neutral?

• acid
• base
• neutral

What is the pH of a solution where the [H+] is 1.0 x 10-11?

• 11
• 13
• 14
• 1