Chemistry

posted by .

In a particular redox reaction, BrO– is oxidized to BrO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution.

Two half reactions:
1.) Cu^2+ --> Cu^+
2.) BrO^- --> BrO3^-

Balanced:
1.) Cu^2+ +e^- --> Cu^+
2.) BrO^- + 2H2O--> BrO3^- + 4H^+ 3e^-

Cross multiply (so e^- cancel):
1.) 3Cu^2+ + 3e^- --> 3Cu^+
2.) BrO^- + 2H2O--> BrO3^- + 4H^+ 3e^-

Combine & cancel:
BrO^- + 3Cu^2+ + 2H2O --> BrO3^- + 3Cu^+ + 4H^+

Not sure what I'm doing wrong but my answer is not right. Thank you for help!

  • Chemistry -

    On #2, atoms balance but charge does not balance. Also, change of electrons is not balanced. Br is +1 on the left and +5 on the right; therefore, change in electrons must be 4 and not 3

  • Chemistry -

    That was it! As always, thank you :)

  • Chemistry -

    This answer is still not correct for me!!

  • Chemistry -

    you wrong fam

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    In aqueous solution, hypobromite ion, BrO-, reacts to produce bromate ion, BrO3 -, and bromide ion, Br-, according to the following chemical equation. 3BrO-(ag) → BrO3 -(ag)+2Br-(ag) A plot of 1/[BrO-] vs. time is linear and …
  2. chemistry

    In a particular redox reaction, Cr is oxidized to CrO42– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Phases are optional. Cr + Cu2+ = CrO42- + Cu+
  3. chemistry

    For a particular redox reaction NO is oxidized to NO3^– and Cu^2+ is reduced to Cu. Complete and balance the equation for this reaction in basic solution: NO + Cu^2+ --> NO3^- + Cu^+ help. thanks.
  4. Chemsitry

    For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
  5. Chemistry

    For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
  6. Chemistry

    Complete and balance the equation for this reaction in basic solution?
  7. Chemistry

    In a particular redox reaction, MnO2 is oxidized to MnO4– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Phases are optional. MnO2 + Cu^2+ ---> MnO4^- + Cu^+
  8. Chemistry

    in a particular redox reaction, MnO2 is oxidized to MnO4– and fe3+ is reduced to fe2+. Complete and balance the equation for this reaction in acidic solution. Phases are optional.
  9. Chemistry 2

    In a particular redox reaction, MnO2 is oxidized to MnO4– and Ag is reduced to Ag. Complete and balance the equation for this reaction in acidic solution. Phases are optional.
  10. Chemistry

    in a particular redox reaction, Cr is oxidized to CrO42- and Ag+ is reduced to Ag. Complete and balance the equation for this reaction in acidic solution.

More Similar Questions