12
The reaction is:Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
0.34-(-2.37)
0.34-0.80
balanced formula: 2 HNO3 + Cu = Cu(NO3)2 + H2more specifically, the copper product would be Cu(NO3)2note: #'s are supposed to be subscripts
Cu + HNO3 = Cu(NO3)2 + NO + H2O
Cu(NO3)2 and H2 are formed
Cu ----> Cu 2+ + 2e-
This is a redox reaction.
HNO3 is not used in redox titration because being a good oxidising ageant it oxidises the compound itself whereas HCL is a very volatile and it takes part in the reaction therefore H2SO4 is used in the reaction
12
Cl2 + 2Cu --> 2CuCl Oxidation reaction is Cu --> Cu+ + 1e Reduction reaction is Cl + 1e --> Cl- Redox reaction is Cu + Cl --> Cu+ + Cl-
47.6 grams
1.68 drops
-2.37 - 0.34
Zn(s) --> Zn2+(aq) + 2e : Oxidation Cu+(aq) + 1e --> Cu(s) : Reduction
-2.37 - 0.34