pH

Question 1

Which statement about the self-ionization of water is correct?

Revolt · Accepted Answer

Two water molecules interact to form a hydronium ion and a hydroxide ion.

Question 2

The pH of a solution is 2.0. Which statement is correct?Useful formulas include , , , and .

Revolt · Accepted Answer

The pOH of the solution is 12.0.

Question 3

The pOH of a solution is 10.75. What is the concentration of OH– ions in the solution?Use .

Revolt · Accepted Answer

1.778 10–11 M

Question 4

Which describes an alkaline solution?

Revolt · Accepted Answer

basic

Question 5

A solution containing HCl would likely have

Revolt · Accepted Answer

a low pH and a high pOH.

Question 6

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

Revolt · Accepted Answer

1

Question 7

A substance with a high pOH would likely have which of the following?

Revolt · Accepted Answer

A high [H+ ] and a low pH

Question 8

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

Revolt · Accepted Answer

9.90

Question 9

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

Revolt · Accepted Answer

a low [OH– ] and a high pOH

Question 10

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

pH Answers