Ions in Aqueous Solution

1
Ions in Aqueous Solution
Print Copy of Lab
Pb(NO3)2(s)
Pb(NO3)2(aq)
H2O(l)
Pb2(aq) 2 NO31(aq)
add water
in solution
dissociation
NaI(s)
H2O(l)
NaI(aq)
Na1(aq) I1(aq)
Mix them and get Balance to get overall ionic
equation Cancel spectator ions to get net ionic
equation
2
Ions in Aqueous Solution
Solubility Chart
Pb(NO3)2(s)
Pb(NO3)2(aq)
H2O(l)
Pb2(aq) 2 NO31(aq)
add water
dissociation
NaI(s) NaI(aq)
H2O(l)
Na1(aq) I1(aq)
Mix them and get Balance to get overall ionic
equation Cancel spectator ions to get net
ionic equation
3
Solubility Chart
Mix them and get
solid
in solution
Balance to get overall ionic equation
Cancel spectator ions to get net ionic equation
4
Solubility Chart
Mix together Zn(NO3)2(aq) and Ba(OH)2(aq)
Mix them and get
Ba(OH)2(aq)
Zn(NO3)2(aq)
Zn2(aq) 2 NO31(aq)
Ba2(aq) 2 OH1(aq)
Balance to get overall ionic equation
Cancel spectator ions to get net ionic equation
5

• Pre-lab
• 1. What ions are present in the following
  solutions?
• NaCl(aq) ? ____________________ AgNO3(aq)
  ? ____________________
• When these solutions are mixed together, a
  precipitate is seen. What are the new
  combinations of ions that could have formed the
  precipitate?
• ____________________ and ____________________
  
• Using the solubility table, which new combination
  will form a precipitate?
• ____________________ ?
• Which new combination will remain in solution?
• ____________________
• 5. Write the overall reaction equation for this
  reaction. Be sure to indicate the correct phase
  (reaction condition) for each reactant and each
  product.

Na1(aq)
Cl1-(aq)
Ag1(aq)
NO31-(aq)
Na1(aq)
Cl1-(aq)
Ag1(aq)
NO31-(aq)
Cl1-(aq)
Ag1(aq)
AgCl(s)
Na1(aq)
NO31-(aq)
Na1(aq)
Cl1-(aq)
Ag1(aq)
NO31-(aq)
Na1(aq)
NO31-(aq)
AgCl(s)
Cl1-(aq)
Ag1(aq)
AgCl(s)
When the cations switch places they end with a
hydroxide (no new combination is formed)
6
Reactions Between Ions in Aqueous Solutions
Key
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spectator ions
2. Co2(aq) 2 NO31-(aq) 2 K1(aq)
2 OH1-(aq) Co(OH)2(s) 2 K1(aq)
2 NO31-(aq)
7
Reactions Between Ions in Aqueous Solutions
Key
15. Cu2(aq) 2 NO31-(aq) 2 K1(aq)
2 OH1-(aq) Cu(OH)2(s) 2 K1(aq)
2 NO31-(aq)
Cu2(aq) 2 OH1-(aq) Cu(OH)2(s)
16. Cu2(aq) 2 NO31-(aq) 2 Na1(aq)
2 OH1-(aq) Cu(OH)2(s) 2
Na1(aq) 2 NO31-(aq)
Cu2(aq) 2 OH1-(aq) Cu(OH)2(s)
20. Fe3(aq) 3 Cl1-(aq) 3 K1(aq)
3 OH1-(aq) Fe(OH)3(s) 3 K1(aq)
3 Cl1-(aq)
Fe3(aq) 3 OH1-(aq) Fe(OH)3(s)
21. Fe3(aq) 3 Cl1-(aq) 3 Na1(aq)
3 OH1-(aq) Fe(OH)3(s) 3 Na1(aq)
3 Cl1-(aq)
Fe3(aq) 3 OH1-(aq) Fe(OH)3(s)
24. Co2(aq) 2 Cl1-(aq) 2 K1(aq)
2 OH1-(aq) Co(OH)2(s) 2 K1(aq)
2 Cl1-(aq)
Co2(aq) 2 OH1-(aq) Co(OH)2(s)
25. Co2(aq) 2 Cl1-(aq) 2 Na1(aq)
2 OH1-(aq) Co(OH)2(s) 2 Na1(aq)
2 Cl1-(aq)
Co2(aq) 2 OH1-(aq) Co(OH)2(s)
8
chromate
hydroxide
bromide
carbonate
chloride
nitrate
phosphate
sulfate
sulfide
acetate
iodide
Legend
SOLID SOLID AQUEOUS
i insoluble ss slightly soluble s
soluble d decomposes n not isolated
9
chromate
hydroxide
bromide
carbonate
chloride
nitrate
phosphate
sulfate
sulfide
acetate
iodide
Legend
s solid aq aqueous d decomposes n not
isolated
10
chromate
hydroxide
bromide
carbonate
chloride
nitrate
phosphate
sulfate
sulfide
acetate
iodide
Legend
s solid aq aqueous d decomposes n not
isolated