pH

Question 1

What is the pH of a solution with [H+] = 1.25 10–10 M?Use .

Revolt · Accepted Answer

9.90

Question 2

Which statement best describes the pH of pure water?

Revolt · Accepted Answer

It is neutral because the concentration of hydronium ions equals that of hydroxide ions.

Question 3

Which of these correctly defines the pH of a solution?

Revolt · Accepted Answer

the negative log of the hydronium ion concentration

Question 4

Which would most likely be the pH of a highly-corrosive acid?

Revolt · Accepted Answer

1

Question 5

The pH of a solution decreases by 2.0. How does the hydronium ion concentration of the solution change?

Revolt · Accepted Answer

increases to 100 times the original concentration

Question 6

What is the equilibrium constant of pure water at 25°C?

Revolt · Accepted Answer

10–14

Question 7

Which describes an alkaline solution?

Revolt · Accepted Answer

basic

Question 8

A solution containing HCl would likely have

Revolt · Accepted Answer

a low pH and a high pOH.

Question 9

A substance with a high [H+ ] would likely have which additional characteristics?

Revolt · Accepted Answer

a low [OH– ] and a high pOH

pH Answers