Asked by Jane
How many milliliters of a 3.85 M solution of Fe2+ are needed to titrate 250.0 mL of a 0.125 M Cro4 2- solution?
H + CrO4 2- + Fe2+ yields to Fe3+ + Cr2O3 + H2) (not balanced)
H + CrO4 2- + Fe2+ yields to Fe3+ + Cr2O3 + H2) (not balanced)
Answers
Answered by
DrBob222
Balance the equation.
Calculate moles CrO4^2- used. That is moles = M x L = ?
Convert moles CrO4^2- to moles Fe^2+ using the coefficients in the balanced equation.
Then M Fe^2+ = moles Fe^2+/L Fe^2+
Solve for L and convert to mL.
Calculate moles CrO4^2- used. That is moles = M x L = ?
Convert moles CrO4^2- to moles Fe^2+ using the coefficients in the balanced equation.
Then M Fe^2+ = moles Fe^2+/L Fe^2+
Solve for L and convert to mL.
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