Gchem question

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predental89

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Consider the reaction 2.5 M dichromate:

Cr2O7^-2 -------> Cr+3 (acidic medium)

what would be the solution Normality if the reaction goes to completion?

I know how you get all the way to balancing it and having to add 6 e- to the right side but how do you determine the normality? please help!!
 
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