In your lab notebook, write the net ionic equation for any reaction from the 10
ID: 942310 • Letter: I
Question
In your lab notebook, write the net ionic equation for any reaction from the 10 below that you would expect to produce a precipitate. If no reaction occurs, write "No Reaction" after reaction the arrow. 1. CuSO_4 (aq) + Ba(NO_3)_2(aq) rightarrow ? 2. CuSO_4(aq) + CuCI_2(aq) rightarrow ? 3. CuSO_4 (aq) + Pb(NO_3)_2 (aq) rightarrow ? 4. CuSO_4(aq) + NaCl(aq)rightarrow ? 5. Ba(NO_3)_2(aq) + CuCl_2(aq) rightarrow ? 6. Ba(NO_3)_2(aq) + Pb(NO_3)2(aq) rightarrow ? 7. Ba(NO_3)_2(aq) + NaCI(aq) rightarrow ? 8. CuCl_2(aq) + Pb(NO_3)_2(aq) rightarrow ? 9. CuCl_2(ag) + NaCI(aq) rightarrow ? 10. Pb(NO_3)_2(aq)+NaCl(aq) rightarrow ?Explanation / Answer
CaSO4(aq) + Ba(NO3)2 (aq) -- >
a) Molecular reaction:
CaSO4(aq) + Ba(NO3)2 (aq) -- > Ca(NO3)2 (aq) + BaSO4(s)
( We referred solubility chart in order to check solubility of product formed. From that we could see that barium sulfate is not soluble there is a formation of precipitation of it.)
Total ionic equation:
The species which are in aqueous phase are dissociated into their ions.
Lets show the dissociation,
Ca2+ + SO42- (aq) + Ba2+ (aq) + 2 NO3- -- > Ca2+ + 2 NO3- + BaSO4(s)
Net ionic equation:
We cancel the similar species (spectator ) from both side.
Ba2+ (aq) + SO42- (aq) -- > Ca2+ + 2 NO3- + BaSO4(s)