Consider a different titration for this exercise. Potassium permanganate (KMnO4) is the titrant and hydrogen peroxide...

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Chemistry

Consider a different titration for this exercise. Potassiumpermanganate (KMnO4) is the titrant and hydrogen peroxide (H2O2)the analyte according to the following balanced chemical equation.2 MnO4âˆ’ + 5 H2O2 + 6 H + â†’ 2 Mn2+ + 5 O2 + 8 H2O
(a) What is the stoichiometry of MnO4âˆ’ to H2O2? (ratio)
(b) Complete the following table for this titration. Data TableP3: Titration of hydrogen peroxide with potassium permanganate.
concentration of MnO4âˆ’ 0.556 M
volume H2O2 solution 18.34 mL
mass H2O2 solution 18.42 g
volume of MnO4âˆ’ solution 16.23 mL
Questions:
mmol of MnO4âˆ’ : ?
mmol of H2O2: ?
mass of H2O2: ?
mass % of H2O2Â Â in the original sample: ?
molarity of H2O2 in the original sample: ?

Answer & Explanation Solved by verified expert

4.2 Ratings (737 Votes)

a The balanced chemical equaiton is 2 MnO4 5 H2O2 6 H 2 Mn2 5 O2 8 H2O So the ratio of MnO4 to H2O2 is 25 b Given that concentration of MnO4 0556 M volume H2O2 solution 1834 See Answer

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