HomeworkLib
Question

Balance the following redox reactions by balancing the half reactions and then combine the half reactions...

Balance the following redox reactions by balancing the half reactions and then combine the half reactions to get the overall balanced redox reaction with the lowest possible whole number coefficients.

1. Consider the following unbalanced redox reaction:

MnO2(s) + BrO3−(aq) → MnO4−(aq) + Br−(aq)

(a) Balance the corresponding half reactions in acidic conditions using the lowest possible whole number coefficients.
(Enter coefficients for one and zero. Blanks will be marked incorrect.)

MnO2(s) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− →  MnO4−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e−

Tries 0/3



BrO3−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− →  Br−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e−

Tries 0/3

(b) Using the results from part (a), balance the full reaction in acidic conditions with the lowest possible whole number coefficients.
(Enter coefficients for one and zero. Blanks will be marked incorrect.)

MnO2(s) +  BrO3−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) →  MnO4−(aq) +  Br−(aq) +  H2O(l) +  OH−(aq) +  H+(aq)

Tries 0/3


2. Consider the following unbalanced redox reaction:

AsO2−(aq) + ClO−(aq) → As(s) + ClO2−(aq)

(a) Balance the corresponding half reactions in acidic conditions using the lowest possible whole number coefficients.
(Enter coefficients for one and zero. Blanks will be marked incorrect.)


AsO2−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− →  As(s) +  H2O(l) +  OH−(aq) +  H+(aq) +  e−

Tries 0/3



ClO−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− →  ClO2−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e−

Tries 0/3

(b) Using the results from part (a), balance the full reaction in acidic conditions with the lowest possible whole number coefficients.
(Enter coefficients for one and zero. Blanks will be marked incorrect.)

AsO2−(aq) +  ClO−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) →  As(s) +  ClO2−(aq) +  H2O(l) +  OH−(aq) +  H+(aq)

Tries 0/3

(c) Using the results from part (b), balance the full reaction in basic conditions with the lowest possible whole number coefficients.
(Enter coefficients for one and zero. Blanks will be marked incorrect.)

AsO2−(aq) +  ClO−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) →  As(s) +  ClO2−(aq) +  H2O(l) +  OH−(aq) +  H+(aq)

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Required coefficients are given in square boxes

For part 1

For part 2

0 0
Add a comment
Know the answer?
Add Answer to:
Balance the following redox reactions by balancing the half reactions and then combine the half reactions...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 1. Consider the following unbalanced redox reaction: ClO4−(aq) + I−(aq) → Cl−(aq) + HIO(aq) (a) Balance...

    1. Consider the following unbalanced redox reaction: ClO4−(aq) + I−(aq) → Cl−(aq) + HIO(aq) (a) Balance the corresponding half reactions in acidic conditions using the lowest possible whole number coefficients. (Enter coefficients for one and zero. Blanks will be marked incorrect.) ClO4−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− →  Cl−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− Tries 0/3 I−(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− →  HIO(aq) +  H2O(l) +  OH−(aq) +  H+(aq) +  e− Tries 0/3 (b) Using the results from part (a), balance the full reaction in acidic conditions with...

  • Balance the following half reactions using the lowest possible whole number coefficients, in basic conditions. (Enter...

    Balance the following half reactions using the lowest possible whole number coefficients, in basic conditions. (Enter coefficients for one and zero- blanks will be marked incorrect.) ClO2−(aq) +  H2O(l) +  OH−(aq) +  e−  ⇌  Cl−(aq) +  H2O(l) +  OH−(aq) +  e− MnO42−(aq) +  H2O(l) +  OH−(aq) +  e−  ⇌  MnO2(s) +  H2O(l) +  OH−(aq) +  e−

  • Balance the following half reactions using the lowest possible whole number coefficients, in acidic conditions.   (Enter...

    Balance the following half reactions using the lowest possible whole number coefficients, in acidic conditions.   (Enter coefficients for one and zero- blanks will be marked incorrect.) 1. HIO(aq) +  H+(aq) +  H2O(l) +  e−  ⇌  I−(aq) +  H+(aq) +  H2O(l) +  e− Tries 0/5 2. MnO4−(aq) +  H+(aq) +  H2O(l) +  e−  ⇌  Mn2+(aq) +  H+(aq) + H2O(l) +  e−

  • Balance the following half reactions using the lowest possible whole number coefficients, in basic conditions.   (Enter...

    Balance the following half reactions using the lowest possible whole number coefficients, in basic conditions.   (Enter coefficients for one and zero- blanks will be marked incorrect.) 1. Br−(aq) +  H2O(l) +  OH−(aq) +  e−  ⇌  BrO3−(aq) +  H2O(l) + OH−(l) +  e− Tries 0/5 2. AgO(s) +  H2O(l) +  OH−(aq) +  e−  ⇌  Ag2O3(s) +  H2O(l) + OH−(l) +  e− Tries 0/5

  • 2. Consider the following unbalanced redox reaction: CIO2 (aq) Cr(OH)1(s)CI(aq) +Cr04(aq) (a) Balance the corresponding half...

    2. Consider the following unbalanced redox reaction: CIO2 (aq) Cr(OH)1(s)CI(aq) +Cr04(aq) (a) Balance the corresponding half reactions in acidic conditions using the lowest possible whole number coefficients Enter coeffcients for one and zero. Blanks i be marked incorrect.) CIO2 (aq) + Submil Answer Tries 0/3 H20(I) + OH (aq) + Submi AnserTries 0/3 (b) Using the results from part (a), balance the full reaction in acidic conditions with the lowest possible whole number coefficients. (Enter coefficients for one and zero....

  • Balance the following reaction using the lowest possible whole number coefficients, in acidic conditions.   (Enter coefficients...

    Balance the following reaction using the lowest possible whole number coefficients, in acidic conditions.   (Enter coefficients for one and zero- blanks will be marked incorrect.) HBrO(aq) +  HAsO2(aq) +  H+(aq) +  H2O(l) +  OH−(aq) →  Br−(aq) + H3AsO4(aq) +  H+(aq) +  H2O(l) +  OH−(aq)

  • 2. Balance the following chemical reaction in basic conditions using the lowest possible whole number coefficients....

    2. Balance the following chemical reaction in basic conditions using the lowest possible whole number coefficients. (Enter coefficients for one and zero- blanks will be marked incorrect.) Unbalanced Reaction: ClO4−(aq) + Ni(OH)2(s) → ClO3−(aq) + NiO2(s) Balanced Reaction: ClO4−(aq) +  Ni(OH)2(s) +  H2O(l) +  OH−(aq) +  H+(aq) →  ClO3−(aq) +  NiO2(s) +  H2O(l) +  OH−(aq) +  H+(aq) Incorrect. Tries 1/13 Previous Tries

  • Balance the following redox reactions: a) CN− + MnO4− → CNO− + MnO2 (basic solution) b)...

    Balance the following redox reactions: a) CN− + MnO4− → CNO− + MnO2 (basic solution) b) O2 + As → HAsO2 + H2O (acidic solution) c) Br− + MnO4− → MnO2 + BrO3− (basic solution) d) NO2 → NO3− + NO (acidic solution) e) ClO4− + Cl− → ClO− + Cl2 (acidic solution) f) AlH4− + H2CO → Al3+ + CH3OH (basic solution)

  • Balancing RedOx Reactions in Acidic or Basic Aqueous Solution Read: Section 4.11, Zumdahl, "Chemical Principles" 8th...

    Balancing RedOx Reactions in Acidic or Basic Aqueous Solution Read: Section 4.11, Zumdahl, "Chemical Principles" 8th ed. Compare ⇒ A worked example using the oxidation number method. Compose the balanced reaction equation for the following reaction occuring in acidic aqueous medium. Reduce all coefficients to the lowest possible integers. Hg(l) + NO3−(aq) → Hg22+(aq) + NO(g) Select the coefficients below, (appropriately including or excluding H2O(l) and H+(aq)). NO3−(aq) + Hg(l) + H+(aq) + H2O(l) → NO(g) + Hg22+(aq) + H+(aq)...

  • In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons...

    In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons lost in the oxidation equals the number of electrons gained in the reduction. This balancing can be done by two methods: the half-reaction method or the oxidation number method. The half-reaction method balances the electrons lost in the oxidation half-reaction with the electrons gained in the reduction half-reaction. In either method H2O(l), OH−(aq), and H+(aq) may be added to complete the mass balance. Which...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT