Online Chemistry PH Quiz

Which statement best describes the pH of pure water? It is neutral because the concentration of hydronium ions equals that of hydroxide ions. It is neutral because the pure liquid contains neither hydronium ions nor hydroxide ions. It is acidic because it has a hydronium ion concentration of mc027-1.jpg. It is basic because it has a hydroxide ion concentration of mc027-2.jpg.

A substance with a high [H+ ] would likely have which additional characteristics? a high [OH- ] and a high pOH a low [OH- ] and a high pOH a high [OH- ] and a low pOH a low [OH- ] and a low pOH

How can the pH of a solution be calculated if the pOH is known? by taking the negative logarithm of pOH by adding the pOH to 14 by raising 10 to the power of -pOH by subtracting the pOH from 14

Note the pH and pOH values labeled with letters on the pH scale below. mc023-1.jpg Based on log rules and the way pH is calculated, what is the difference in [OH- ] concentration between point A and point B. 101 105 106 107

Which statement about the self-ionization of water is correct? Two water molecules interact to form a water molecule and a hydroxide ion. Two water molecules interact to form a hydronium ion and a hydroxide ion. Two water molecules interact to form two hydronium ions. Two water molecules interact to form two hydroxide ions.

Which describes an alkaline solution? pH less than 7 pH equal to 7 basic acidic

A substance with a high pOH would likely have which of the following? A low [H+ ] and a high pH A low [OH- ] and a high pH A high [OH- ] and a low pH A high [H+ ] and a low pH

Which of these correctly defines the pH of a solution? the negative log of the hydronium ion concentration the log of the hydronium ion concentration the negative log of the hydroxide ion concentration the log of the hydroxide ion concentration

A solution containing HCl would likely have a high pH and a low pOH. a low pH and a high pOH. a high pH and a high pOH. a low pH and a low pOH.

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? A substance with a pH of 2 has a 10 times higher concentration of H+ than a substance with a pH of 3. A substance with a pH of 3 has a 10 times higher concentration of H+ than a substance with a pH of 2. A substance with a pH of 2 has a 100 times higher concentration of H+ ions than a substance with a pH of 3. A substance with a pH of 3 has a 100 times higher concentration of H+ ions than a substance with a pH of 2.