Question #eaf9b
2 Answers
Explanation:
Start with the 1/2 equations:
In order to get the electrons to balance, you can see that we need to x
This tells us that
For the manganate(VII) titration the 1/2 equation is :
To get the electrons to balance, we need to x
This tells us that
The reduction half reaction of
And the oxidation half reaction of
The reduction half reaction of
Multiplying (2) by 6 and then adding with (1) the balanced equation of redox reaction by dichhromate becomes
This equation (4)reveals that
Multiplying (2) by 5 and then adding with (3) the balanced equation of redox reaction by permanganate becomes
This equation (5)reveals that
So by combining (4A) and (5A) we can say
Now
So if titration is carried out with 0.02 M
solution then 30ml 0.02M permanganate solution will be required.