moles of electrons transfered

[Xtian]

how do you figure out the number of mol of electrons transfered in

3Co+2 +2Cr-->2Cr+3 +3Co

when
Cr+3 + 3e--->Cr
Co+2 +2e-->Co

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[atlanta213]

6 electron?

 

[drzakisadiq]

how do you figure out the number of mol of electrons transfered in

3Co+2 +2Cr-->2Cr+3 +3Co

when
Cr+3 + 3e--->Cr
Co+2 +2e-->Co

If I'm reading the way you wrote the equation right, you would have 6 mol of electrons transferred for Co and 6 mol of electrons transferred for Cr. You multiply the coeficient by the number of electrons that would be transferred in the half reaction of the element.

 

[Xtian]

awesome, thanks!