Question

Complete and balance the following redox equation using the smallest whole number coefficients. What is the...

Complete and balance the following redox equation using the smallest whole number coefficients. What is the coefficient of I2 in the balanced equation?

MnO4-(aq) + I- -->  Mn2+ + I2 (acidic solution)

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Write reduction and oxidation half

Reduction half

MnO4-(aq) --- > Mn2+ (aq)

Oxidation half

I- --- > I2

Now balance the elements other than O and H

MnO4-(aq) --- > Mn2+ (aq)

2I- --- > I2

Balance O and H

MnO4- + 8H+ --- > Mn2+ + 4H2O

2I- --- > I2

Balance charge and electrons.

2 x (MnO4- + 8H+ + 5e- --- > Mn2+ + 4H2O )

5 x ( 2I- --- > I2 +2e- )

2MnO4- + 16H+ + 10 e- --- > 2Mn2+ + 8H2O

10I- --- > 5I2 + 10e-

----------------------------------------- ----

2MnO4- + 16H+ + 10I- --- > 2Mn2+ + 8H2O

0 0
Know the answer?
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
Similar Questions
Balance the following redox reaction in acidic solution using the half-reaction method, with smallest whole-number coefficients....
Balance the following redox reaction in acidic solution using the half-reaction method, with smallest whole-number coefficients. MnO4−(aq) + S2O32−(aq) → Mn2+(aq) + SO42−(aq) _____ MnO4−(aq) + _____ S2O32−(aq) + _____ H+(aq) → _____ Mn2+(aq) + _____ SO42−(aq) + _____ H2O(l)
When the following redox equation is balanced with smallest whole–number coefficients, the coefficient for ReO41- will...
When the following redox equation is balanced with smallest whole–number coefficients, the coefficient for ReO41- will be _____. Au(s) +   ReO4–(aq) --> Re(s) + Au3+(aq) (acidic solution) A. 2    B. 3    C. 7   D. 8   E. None of these choices is correct.
Complete the following Mn2+(aq) + F2(g) --> F-(aq) + MnO4-(aq) a. Balance the redox equation above...
Complete the following Mn2+(aq) + F2(g) --> F-(aq) + MnO4-(aq) a. Balance the redox equation above in acidic solution. Show work for full credit. b. Circle the reducing agent in this redox reaction. c. Calculate Eo for this reaction.
Complete the following Mn2+(aq) + F2(g) --> F-(aq) + MnO4-(aq) a. Balance the redox equation above...
Complete the following Mn2+(aq) + F2(g) --> F-(aq) + MnO4-(aq) a. Balance the redox equation above in acidic solution. Show work for full credit. b. Circle the reducing agent in this redox reaction. c. Calculate Eo for this reaction
Balance the Redox Equation using the 1/2 rxn method: 1.) S2O32-(aq) + I2(aq) ---> S4O62- (aq)...
Balance the Redox Equation using the 1/2 rxn method: 1.) S2O32-(aq) + I2(aq) ---> S4O62- (aq) + I-(aq) Balance the Redox Equation using the 1/2 rxn method (acidic): 1.) HSO3-(aq) + MnO4-(aq) ---> Mn2+ (aq) + SO42- (aq) 2.) H2O2(aq) ---> O2(g) Balance the Redox Equation using the 1/2 rxn method (basic): 1.) HSO3-(aq) + MnO4-(aq) ---> MnO42-(aq) + SO42-(aq) 2.) MnO42-(aq) ---> MnO2 (aq)
Balance the following redox reaction in acidic solution. What are the coefficients in front of C2H4O...
Balance the following redox reaction in acidic solution. What are the coefficients in front of C2H4O in the balanced reaction? C2H4O(aq) + NnO4-(aq) → C2H4O2(aq) + MnO2(aq)
1) Balance the reaction Fe2+ + MnO4– → Fe3+ + Mn2+ in acidic solution. What is...
1) Balance the reaction Fe2+ + MnO4– → Fe3+ + Mn2+ in acidic solution. What is the correct coefficient for Fe2+ when the smallest whole number coefficients are used? 2) Balance the reaction Fe2+ + H2O2 → Fe3+ + H2O in acidic solution. How many electrons are exchanged when the smallest whole number coefficients are used? 3) Balance the reaction Cu + HNO3 → Cu2+ + NO in acidic solution. What is the correct coefficient for NO when the smallest...
The problem asks me to balance the following redox equation using the (ion-electron) half-reaction method: 1)...
The problem asks me to balance the following redox equation using the (ion-electron) half-reaction method: 1) MnO41- (aq) + Cl1- (aq) --> Mn2+ (aq) + Cl2 (g) (acidic solution)
For the following redox reaction write a balanced equation for the whole reaction and include states...
For the following redox reaction write a balanced equation for the whole reaction and include states of matter MnO4^- (aq) + Cl ^- (aq) -> Mn^2+ (aq) + Cl2 (g)
Complete and balance this equation for a reaction in acidic medium using smallest whole #'s. Reaction:...
Complete and balance this equation for a reaction in acidic medium using smallest whole #'s. Reaction: As2O3 + NO-3----> H3AsO4 + NO (split into 1/2 reactions first)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT