Chapter 4
Q. 4.4
Classifying Acids and Bases as Strong or Weak
Identify each of the following compounds as a strong or weak acid or base:
a. LiOH b. HC_2H_3O_2 c. HBr d. HNO_2Step-by-Step
Verified Solution
Refer to Table 4.3 for the common strong acids and bases. You can assume that other acids and bases are weak.
a. As noted in Table 4.3, LiOH is a strong base.
b. Acetic acid, HC_2H_3O_2, is not one of the strong acids listed in Table 4.3; therefore, we assume HC_2H_3O_2 is a weak acid.
c. As noted in Table 4.3, HBr is a strong acid.
d. Nitrous acid, HNO_2, is not one of the strong acids listed in Table 4.3; therefore, we assume HNO_2 is a weak acid.
Table 4.3
| Common Strong Acids and Bases | ||
| Strong Acids | Strong Bases | |
| HClO_4 | LiOH | |
| H_2SO_4 | NaOH | |
| HI | KOH | |
| HBr | Ca(OH)_2 | |
| HCl | Sr(OH)_2 | |
| HNO_3 | Ba(OH)_2 | |