pH - Quiz Quiz

Question 1

What is the pH of a solution with open bracket cap h raised to the plus power close bracket is equal to 1 point 2 5 times 10 to the negative 10 power cap m ? Use pH is equal to negative log times open bracket cap h sub 3 cap o raised to the plus power close bracket

Revolt · Accepted Answer

A: 9 point 9 0

Question 2

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

Revolt · Accepted Answer

A: 10 to the negative 14 power

Question 3

Based on the definition of logarithms, what is the difference in hydrogen ion concentration between a substance with a pH of 2 and a substance with a pH of 3 ?

Revolt · Accepted Answer

B: A substance with a  pH  of  2  has a  10  times higher concentration of  cap h raised to the plus power  than a substance with a  pH  of  3 .

Question 4

The pH of a solution decreases by 2 point 0 How does the hydronium ion concentration of the solution change?

Revolt · Accepted Answer

D: increases to  100  times the original concentration

Question 5

The pOH of a solution is 10 point 7 5 What is the concentration of OH raised to the negative power ions in the solution? Use open bracket OH raised to the negative power close bracket is equal to 10 raised to the negative pOH power

Revolt · Accepted Answer

C: 1 point 7 7 8 times 10 to the negative 11 power cap m

Question 6

A solution containing HCl would likely have

Revolt · Accepted Answer

A: a low  pH  and a high  pOH .

Question 7

Which describes an alkaline solution?

Revolt · Accepted Answer

C: basic

Question 8

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

Revolt · Accepted Answer

B: A high  open bracket cap h raised to the plus power close bracket  and a low  pH

Question 9

Which of these correctly defines the pH of a solution?

Revolt · Accepted Answer

D: the negative log of the hydronium ion concentration

Question 10

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

Revolt · Accepted Answer

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

pH - Quiz Quiz Answers

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