# Chemistry

MnO4– + SO32– + H2O → MnO2 + SO42– + 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 balanced reduction half-reaction?

1. 👍
2. 👎
3. 👁
1. In an acidic solution the MnO4^- goes to Mn^2+ which is a gain of 5 electrons per mole MnO4^-. S in sulfite is 4+ and it changes to 6+ in sulfate which is a loss of 2 electrons/mol. After multiplying the Mn by 2 and the sulfite by 5 the total electons changes = 10.
So the reduction half (the MnO4^-) gains 5e/mol or 10e/2 mols in the balanced equation.

1. 👍
2. 👎
👤
DrBob222

## Similar Questions

1. ### chemistry

MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for

2. ### chemistry

Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also

3. ### Chemistry

When the following equation is balanced in an acidic solution how many electrons are transferred? MnO4- + H2SO3 --> SO42- + Mn2+

4. ### Chemistry

which equation represents an oxidation-reduction reaction? 1.HCl+KOH-->KCl+H2O 2.4HCl+MnO2-->MnCl2+2H2O+Cl2 3.2HCl+CaCO3-->CaCl2+H2O+CO2 4.2HCl+FeS-->FeCl2+H2S

1. ### Chemistry

When the equation for the following reaction in basic solution is balance, what is the sum of the coefficients? MnO2 + HO2^1-.....>MnO4^1- A=11 B=31 C=14 D=9

2. ### 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^+

3. ### chemistry

Balancing Redox Reaction in Basic Solution CN- + MnO-4 --> CNO- + MnO2 H2O + CN- --> CNO- + 2H +2e 3e + 4H + MnO4- --> MnO2 + 2H2O My confusion is with adding the OH- please explain

4. ### Science

Given the reaction at equilibrium: BaSO4(s) ↔ Ba2+(aq) + SO42–(aq) BaSO4 Ba2+. + SO42- The concentration of SO42– ions can be decreased by the addition of A) BaSO4(s) B) BaCl2(s) C) Na2SO4(s) D) NaNO3(s)

1. ### Chemistry

Predict the product(s) for the following reaction: H2SO4(aq) + KOH(aq) --> Choose one answer. a. K(s) + H2(g) + SO3(g) b. K2SO4(aq) + H2O(l) c. No reaction occurs d. K2S(aq) + H2O(l) e. KSO4(aq) + H2O(l) I keep getting: K2SO4(aq)

2. ### Balance each of the following redox reactions occu

Balance each of the following redox reactions occurring in acidic solution a) SO32- (s) +MNO4- ---> SO42- +Mn2+ b) S2O32-+ Cl2 ---> SO42-+Cl-

3. ### chem

Balance the following oxidation-reduction reaction in acid solution: SO32- + MnO4- --> SO42- + Mn2+ + H2O

4. ### chemistry

Mno4- + So3-2 = Mno2 + sO4-2 (in neutral solution,but H+ ions will appear in the final question) solve this redox reaction and give me the method also Thank you