6 FeCl2(aq) + K2Cr2O7(aq) + 14 HCl(aq) ==>

Question

6 FeCl3(aq) + 2 CrCl3(aq) + 2 KCl(aq) + 7 H2O(l)
How many milliliters of 0.0750 M K2Cr2O7(aq) will react with 0.038 mol of FeCl2(aq)?

I used the equation Molarity=Mole/Volume
and divided my answer by 1000 to get milliliters. I'm still getting the answer wrong for some reason. Please help! Thank you!

Answer 1

0.038 mol FeCl2 x (1 mol K2Cr2O7/6 mol FeCl2) = mols K2Cr2O7.
Then M = mols/L so
L = mols/M =
Then multiply by 1000 to convert to mL.