Question

MnO4- + SO2 = Mn2+ +HSO4- balancing in basic medium . please help

Answer 1

Answer:

too difficult I am in class 5. sorry

Answer 2

Explanation:

Home work, home work!

Here are some hints:

Manganese goes from oxidation state +7 to +2. A 5-electron change and a reduction.

Sulfur goes from an oxidation state of +4 to +6. A 2-electron change and an oxidation.

5e- + MnO4- = Mn2+

SO2 = HSO4- + 2e-

Balance the charge with H+

8 H+ + 5e- + MnO4- = Mn2+

SO2 = HSO4- + 2e- + 3 H+

Now balance the H using H2O

If done correctly, the O should be balanced

Multiply each half reaction by a number that will give the same number of electrons in each—in this case TEN electrons and then add the two half reactions.

Hope it helps you