Question 1
What volume of 0.200 M potassium hydroxide should be added to 300. mL of 0.150 M propanoic acid (C
2H
5COOH) to obtain a solution with a pH of 5.25? [K
a(C
2H
5COOH) = 1.34 × 10
–5]
◦ 32 mL
◦ 210 mL
◦ 160 mL
◦ 65 mL
◦ 13 mL
Question 2
Which of the following compounds is more soluble in a 0.10 M NH
3(aq) solution than in pure neutral water?
◦ CaF
2◦ MgCO
3◦ AgI
◦ SrSO
4◦ Ba(NO
3)
2