KMnO4 + H2SO4 + H2O2 --> KMn +H2O + SO2. I have tried looking at websites and texts books and can't get it at all using loads of paper with wrong answers.
Please could you help I would really appreciate it.
Thank you in advance.
2007-06-19 09:18:41 · 6 answers · asked by Cilla D 1 in Science & Mathematics ➔ Chemistry
MnO4-(aq) + 8H+(aq) + 5e- --> Mn+2(aq) + 4H2O(l) * 2
H2O2(aq) --> 2H+(aq) + 2e- + O2(g) (not SO2) *5
add
2 MnO4-(aq) + 6H+(aq) + 5H2O2(aq) --> 2Mn+2(aq) +
5O2(g) + 8 H2O(l)
adding spectator ions
2KMnO4(aq) + 3H2SO4(aq) + 5H2O2(aq) -->
2MnSO4(aq) + K2SO4(aq) + 8H2O(l) + 5O2(g)
2007-06-19 09:42:38 · answer #1 · answered by Dr Dave P 7 · 2⤊ 0⤋
2(KMnO4) + 3(H2SO4) + 5(H2O2) ==>
K2SO4 + 2(MnSO4) + 8(H2O) +5(O2)
2007-06-19 18:24:29 · answer #2 · answered by jimschem 4 · 0⤊ 0⤋
Does it have any connection with dissociation?
2kMnO4 + H2SO4 +H2O2---> 2MnO2+ 2H2O + k2SO4+2O2
may be this way i `m not sure
2007-06-19 18:18:20 · answer #3 · answered by Anonymous · 0⤊ 0⤋
2KMnO4+3H2SO4>K2SO4+2MnSo4+
3H2O+5(O)
5{H2O2+(O) >>H2O+ O2}
2007-06-19 16:30:31 · answer #4 · answered by ssrvj 7 · 0⤊ 0⤋
hold on, i'll try it... just give me a couple of minutes
sorry, this one's too hard... good luck
2007-06-19 16:23:03 · answer #5 · answered by lizbiz707 3 · 0⤊ 0⤋
you don't. there's no such thing as KMn.
2007-06-19 18:57:49 · answer #6 · answered by chem 1 · 0⤊ 0⤋