CHEMISTRY

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

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

can someone help me step by step??

  1. 👍 0
  2. 👎 0
  3. 👁 103
asked by kevin
  1. Answered above.

    1. 👍 0
    2. 👎 0
  2. 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)

    1. 👍 0
    2. 👎 0
    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

    asked by max on January 18, 2009
  2. 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??

    asked by kevin on January 18, 2009
  3. 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 of

    asked by Ed on January 10, 2010
  4. Chemistry (electron transfer)

    MnO4^– + SO3^2– + H2O → MnO2 + SO4^2– + OH^– If the reaction occurs in an acidic solution where water and H+ ions are added to the half-reactions to balance the overall reaction, how many electrons are transferred in the

    asked by Summer on April 2, 2018
  5. 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)

    asked by Anonymous on February 14, 2013
  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?

    asked by eng on January 7, 2010
  7. AP Chemistry

    2 Al + 3 Cu(NO3)2 --> 2 Al(NO3)3 + 3 Cu 1. Write balanced equations for the oxidation and reduction half-reactions. Identify each half-reaction as oxidation or reduction. 2. In the balanced overall reaction, determine which is the

    asked by Neha on June 24, 2011
  8. 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) +

    asked by Alex on February 10, 2008
  9. 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) +

    asked by Alex on February 10, 2008
  10. chemistry

    How to make into compounds to get a formula? Li+: Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Cu:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Pb2+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Ca2+:Br-, O2-, CN-, SO3^2-, PO3^3-,MnO4- Al3+:Br-, O2-, CN-,

    asked by Jessica on October 27, 2010

More Similar Questions