Advanced Honors / Honors Chemistry: Homework 14-2
1. What type of ion do acids form when dissolved in water? What type of ion do bases form when dissolved in water?
2. How does a base affect litmus paper?
3. What color does phenolphthalein turn in the presence of a base?
4. For each of the following, state whether the following solutions are acidic or basic.
a.
b.
c.
d.
e.
coffee ( pH of 5.12)
household ammonia clean (pH = 11.9)
baking soda solution (pH = 8.4)
lemon juice (pH=2.2)
blood (pH = 7.4)
5.
Distinguish between strong acids and weak acids.
6.
Classify each as a strong acid, a weak acid, a strong base, or a weak base.
a. HNO3
d. Ca(OH)2
b. KOH
e. NH3
c. HC2H3O2
f. HF
7.
What is a diprotic acid? Provide an example of a diprotic acid.
8.
H3PO4, which contains three hydrogen atoms per molecule, is a weak acid, whereas HCl, which contains only one hydrogen
atom per molecule, is a strong acid. Explain why.
9.
Complete and balance the following neutralization reactions. Identify the salt formed in the reaction.
a.
HBr + KOH
b.
H2SO4 + LiOH
c.
Sr(OH)2 + HNO3