Which of the following statements are TRUE of buffer solutions?
1. A buffer solution can be made by mixing equal concentrations of acetic acid and sodium acetate.
2. A buffer solution can be made by mixing equal concentrations of hydrochloric acid and sodium chloride.
3. A buffer solution resists changes in pH when small quantities of acid or base are added.
A) 1 and 2 only
B) 2 and 3 only
C) 1 and 3 only
D) All of 1, 2, and 3
E) None of 1, 2, and 3
Answer: C