1. Clicker #1
When lead(II) nitrate and potassium iodide are mixed, what precipitate will form?
Pb(NO3)2(aq) + KI(aq) →
A) KNO3
B) KI
C) Pb(NO3)2
D) PbI2
E) No precipitate will form.
Solubility Rules
Most nitrate salts are soluble.
Most salts of sodium, potassium, and ammonium cations are soluble.
Most chloride and iodide salts are soluble. Exceptions: Ag+ and Pb2+.
Most sulfate salts are soluble. Exceptions: Ca2+, Ba2+, and Pb2+.
Most hydroxide salts are only slightly soluble. Soluble ones are: Na+, K+, and Ca2+.
Most sulfide, carbonate, and phosphate salts are only slightly soluble.

2. Example #1
What volume of a M KI solution is needed to completely react with mL of a M Pb(NO3)2 solution?
What is the mass of solid produced?
What are the concentrations of the ions left in solution after the reaction is complete?

3. Example #1
What volume of a M KI solution is needed to completely react with mL of a M Pb(NO3)2 solution?
200. mL KI

4. Example #1
What is the mass of solid produced?
4.61 g PbI2

5. Example #1
What are the concentrations of the ions left in solution after the reaction is complete?

6. Clicker #2
What ions are left in solution after the reaction is complete?
I. Pb2+
II. NO3–
III. K+
IV. I–
A) II and III
B) I and IV
C) II, III and IV
D) I, II, III and IV
E) No ions are left in solution after the reaction is complete.

7. Example #1
What are the concentrations of the ions left in solution after the reaction is complete?
[Pb2+] = 0 M
[I–] = 0 M
[NO3–] = M
[K+] = M

8. Example #2
Same reaction (and volumes) but different starting amounts in moles:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
mol mol
What is the mass of solid produced?
What are the concentrations of the
ions left in solution after the reaction is
complete?

9. Example #2
Same reaction (and volumes) but different starting amounts in moles:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
mol mol
What is the mass of solid produced?
4.61 g PbI2

10. Example #2
Same reaction (and volumes) but different starting amounts in moles:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
mol mol
What are the concentrations of the
ions left in solution after the reaction is
complete?

11. Clicker #3
What ions are left in solution after the reaction is complete?
I. Pb2+
II. NO3–
III. K+
IV. I–
A) II and III
B) I and IV
C) II, III and IV
D) I, II, III and IV
E) No ions are left in solution after the reaction is complete.

12. Example #2
Same reaction (and volumes) but different starting amounts in moles:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
mol mol
What are the concentrations of the
ions left in solution after the reaction is
complete?
[Pb2+] = 0 M
[I–] = M
[NO3–] = M
[K+] = M