redox equations

kerry222 · Post by **kerry222** » Tue Aug 07, 2007 6:39 am

Hey can anyone help me by showing me the steps to do thid redox equation.
Cl₂ + S₂O₃₂- ------> Cl- + SO₄₂-
any help would be much appriciated...

peter · Post by **peter** » Wed Aug 08, 2007 9:20 am

Not sure how to explain steps, but here is the
answer

holyland · Post by **holyland** » Fri Aug 10, 2007 1:04 am

hello! following is the details,please check it !

Na₂S₂O₃+4Cl₂＋5H₂O=2NaCl＋2H₂SO₄+6HCl

sharidan_j · Post by **sharidan_j** » Fri Aug 10, 2007 5:08 am

Cl₂ + S₂O₃₂- ------> Cl- + SO₄₂-

Cl₂ +2e --> 2Cl- [x2]
S₂O₃₂- + 5H₂O --> 2SO₄₂- + 10H+ + 4e

final eqn: 2Cl₂ + S₂O₃₂- + 5H₂O ---> 4Cl- + 2SO₄₂- +10H+

i think that should be right, but just got through it and make sure i didnt make a mistake on purpose

kerry222 · Post by **kerry222** » Sat Aug 11, 2007 3:52 am

sharidan_j wrote:Cl₂ + S₂O₃₂- ------> Cl- + SO₄₂-

Cl₂ +2e --> 2Cl- [x2]
S₂O₃₂- + 5H₂O --> 2SO₄₂- + 10H+ + 4e

final eqn: 2Cl₂ + S₂O₃₂- + 5H₂O ---> 4Cl- + 2SO₄₂- +10H+

i think that should be right, but just got through it and make sure i didnt make a mistake on purpose

Thanx for the help any chance you could help wtih this one, im doin a degree in forensic science but i just cant get my head round these equations please..

MnO₄- + H₂SO₃ -----> Mn₂+ + HSO₄-

Thanx