- #1

srana

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6Fe2++14H++Cr2O2−7→6Fe3++2Cr3++7H2O

So how would i go about finding the mass percent of Fe in the ore sample?

I tried multiplying 30.86ml with the 5.027×10−2M K2Cr2O7(aq) to find the mol of K2Cr2O7 but I have no idea what i am doing with that..Please respond as soon as you can! thanks