Unit 9 Acids & Bases Final Exam Review

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3
• 9
• 7
• 5

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic
• slightly acidic
• strongly basic
• slightly basic

 Which of the following is an acid?

• shampoo
• baking soda
• orange juice
• water

The pH scale measures...

• ...the strength of an acid.
• ...the strength of hydrogen ions.
• ...the concentration of hydrogen ions.
• ...the concentration of an acid

If a solution is basic which ion will be more present?

• H+
• K+
• OH-
• H-

Ammonia has a pH of 12.  Ammonia is __________.

• an acid
• a base
• an element
• a metal

Hydrochloric acid (HCl) and acetic acid (HC₂H₃O₂) are both acids. HCl completely dissociates in water, while HC₂H₃O₂ does not. Which of the following statements best describes these two acids?

• HCl is a weak acid, HC₂H₃O₂ is a weak acid.

• HCl is a strong acid, HC₂H₃O₂ is a strong acid.

• HCl is a strong acid, HC₂H₃O₂ is a weak acid.

• HCl is a weak acid, HC₂H₃O₂ is a strong acid.

(8B) Which of these pH numbers indicates the strongest acid?

• 1

• 3

• 8

• 12

Which of the following is a property of bases?

• a pH < 7
• slippery feel
• tart or sour taste
• corrosive to metals

True or false: a neutral solution has equal amounts of H⁺ and OH^-.

• True

• False