PH Quiz

What primarily determines the pH of solution?

• solubility of solute

• Hydrogen ion (H+) concentration

• temperature of the solution

If the pH of a solution is 4.0, what is the pOH?

• 4.0

• 10.0

• 1.0 x 10 ^-4

• cannot be determined from the information

Which is the correct equation for calculating pH?

• pH = log[H⁺]

• pH = -log[H⁺]

• pH = 10^-[H+]

• pH = In[H⁺]

What is the pH of pure water?

• 7

• 1

• 0

• 14

What is the concentration of hydrogen ions in pure water?

• 1 × 10^-1 M

• 1 × 10^-10 M

• 1 × 10^-7 M

• 1 × 10^-14 M

What is the effect of adding an acid to an aqueous solution?

• Decreases OH- concentration

• Increases OH- concentration

• Decreases H+ concentration

• Increases H+ concentration

What is the effect of adding a base to an acidic solution?

• Increases H+ concentration

• Decreases H+ concentration

• Increases OH- concentration

• Decreases OH- concentration

What is the role of a buffer in a solution?

• To increase the pH

• To decrease the pH

• To maintain a stable pH

• To neutralize the solution

In what environment did bacteria B grow best in?

• neutral

• slightly acidic

• slightly basic

• very basic

What is the pOH for the solution if the pH of the solution is 11?

• 11

• 3

• 14

• 1.0x10^-7