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Hey all, sorry for the hmwk question but I just had a quick Q...its late so maybe I'm missing something....
Balance the RedOx Rxn: As2O3 + NO3- ---> H3AsO4 + N2O3
1/2 reactions:
4e- + AS2O3 + 5H20 ---> 2H3AsO4 + 4H+
and
2NO3- + 3H+ ---> N2O3 + 3H2O + 1e-
So here's my question: Can I multiply the 2nd 1/2 rxn by 4 and the top by 1? Cuz when I do that and cancel out, the Hydrogens don't balance out...
(4e- + AS2O3 + 5H20 ---> 2H3AsO4 + 4H+) x 1
(2NO3- + 3H+ ---> N2O3 + 3H2O + 1e-) x 4
4e- + AS2O3 + 5H20 ---> 2H3AsO4 + 4H+
8NO3- + 12H+ ----> 4N2O3 + 12H20 + 4e-
cancel out
8NO3- + AS2O3 + 8H+ ----> 4N2O3 + 2H3AsO4 + 7H20
8 H on the left, 20 on the right??
Balance the RedOx Rxn: As2O3 + NO3- ---> H3AsO4 + N2O3
1/2 reactions:
4e- + AS2O3 + 5H20 ---> 2H3AsO4 + 4H+
and
2NO3- + 3H+ ---> N2O3 + 3H2O + 1e-
So here's my question: Can I multiply the 2nd 1/2 rxn by 4 and the top by 1? Cuz when I do that and cancel out, the Hydrogens don't balance out...
(4e- + AS2O3 + 5H20 ---> 2H3AsO4 + 4H+) x 1
(2NO3- + 3H+ ---> N2O3 + 3H2O + 1e-) x 4
4e- + AS2O3 + 5H20 ---> 2H3AsO4 + 4H+
8NO3- + 12H+ ----> 4N2O3 + 12H20 + 4e-
cancel out
8NO3- + AS2O3 + 8H+ ----> 4N2O3 + 2H3AsO4 + 7H20
8 H on the left, 20 on the right??