CHEMISTRY

posted by .

Write a balanced equation for the following reduction-oxidation reaction.

SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+)

can someone help me step by step??

  • CHEMISTRY -

    Answered above.

  • CHEMISTRY -

    SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+)
    first deal with S, Mn atoms
    there must be the same number on each side

    nSO3(2-) + mMnO4(-) --- nSO4(2–) + mMn(2+)
    now try 2jH(+) on the left and jH2O on the right
    nSO3(2-) + mMnO4(-) +2jH(+) --- nSO4(2–) + mMn(2+) + jH2O
    O atoms
    3 n + 4 m = 4 n + j
    or
    n+j = 4 m
    + charges
    -2 n - 1 m + 2 j = -2 n + 2 m
    so from the second one
    3 m = 2 j
    j = (3/2) m
    from the first one
    n + (3/2) m = 4 m
    or
    n = (5/2) m
    Now go back using m = 2 to make the fraction go away
    then j = 3
    and n = 5
    5 SO3(-2) + 2 MnO4(-1) + 6 H(+1) --> 3 H2O + 5 SO4(-2) + 2 Mn(+2)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Using the change in oxidation number method, balance the redox reaction shown below. (NO2^2)+ (MnO4^-)---> (NO3^-)+ Mn^2+ Divide into half reactions. I will show you how to do MnO4^- and you do the other one. MnO4^- ==> Mn^+2 …
  2. Chemistry

    Electron Transfer Theory Write an label the oxidation and reduction half-reaction equations. a) Ni(s) + Cu(NO3)2(aq) -> Cu(s)+ Ni(No3)2(aq) oxidation - Ni(s) -> Ni2+(aq) + 2e- reduction - Cu2+(aq) + 2e- -> Cu(s) b) Pb(s) + …
  3. Chemistry

    Electron Transfer Theory Write an label the oxidation and reduction half-reaction equations. a) Ni(s) + Cu(NO3)2(aq) -> Cu(s)+ Ni(No3)2(aq) oxidation - Ni(s) -> Ni2+(aq) + 2e- reduction - Cu2+(aq) + 2e- -> Cu(s) b) Pb(s) + …
  4. URGENT CHEM

    Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) numbers in parenthesis means the charge
  5. CHEMISTRY URGENT PLZ HELP

    Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step?
  6. chemistry

    1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced?
  7. Chem

    Write a balanced equation for the following reduction-oxidation reaction. SO3–2 + MnO4–SO42– + Mn2+ __SO32–(aq) + ___MnO4–(aq) + ___H+(aq)--> ___SO42–(aq) + ___Mn2+(aq) + ___H2O(l) I have no idea how to do this type …
  8. Chemistry

    How to make into compounds to get a formula?
  9. chemistry

    How to make into compounds to get a formula?
  10. analytical chemistry

    Write balanced net-ionic equations to describe: a. The oxidation of Mn2+ to MnO4- by ammonium peroxydisulfate [(NH4)2S2O8] b. The air-oxidation of HAsO32- to HAsO42- c. The oxidation of Ce3+ to Ce4+ by sodium bismuthate (NaBiO3) Write …

More Similar Questions