question archive Starting unbalanced C2O42-(aq) + MnO4-(aq) à CO2(g) + Mn2+(aq) a) write the equation for the oxidation half reaction- Make sure to balance b) write the equation for the reduction half reaction - Make sure to balance c) Find the overal balanced equation for this reaction d) 13
Starting unbalanced C2O42-(aq) + MnO4-(aq) à CO2(g) + Mn2+(aq) a) write the equation for the oxidation half reaction- Make sure to balance b) write the equation for the reduction half reaction - Make sure to balance c) Find the overal balanced equation for this reaction d) 13
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Starting unbalanced
C2O42-(aq) + MnO4-(aq) à CO2(g) + Mn2+(aq)
a) write the equation for the oxidation half reaction- Make sure to balance
b) write the equation for the reduction half reaction - Make sure to balance
c) Find the overal balanced equation for this reaction
d) 13.91 mL of KMnO4 solution to titrate 0.159 g of Na2C2O4 to the equivalence point, what will be the final concentration of the KMnO4 solution?
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a) electrons in the products -- oxidation
b) electrons in the reactants -- reduction
c) to balance the half reactions you need to have the same number of electrons (10 e- for both), so you need to multiply the reactions to get 10e-
d) Convert grams of Na2C2O4 to moles, then use the mole:mole ratio to calculate moles of KMnO4. Divide moles/L to get molarity.
