Solution Stoichiometry
9. Solutions / Solution Stoichiometry / Problem 3
In the following redox reaction, dichromate ion, Cr2O7 2–, oxidizes Fe2+ to yield the following products:
Cr2O7 2–(aq) + 6 Fe2+(aq) + 14 H+(aq) → 2 Cr3+(aq) + 6 Fe3+(aq) + 7 H2O(l)
What is the molar concentration of Cr2O72– if it takes 45.0 mL of 0.355 M FeCl2 to titrate 125.0 mL of a solution containing Cr2O72–?
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