SOLVED:In case study 3, we showed how colorimetry can be used to follow the oxidation of [C2 O4]^2- by [MnO4]^- ions in acidic aqueous solution. The data shown in Figure 11.8 refer to an experiment in which 2.0 cm^3 of aqueous KMnO4(4.0 ×10^-4 moldm^-3) are mixed with 1.0 cm^3 aqueous sulfuric acid solution that contains [C2 O4]^2- ions (x moldm^-3) in a cuvette of path length 1.0 cm. (a) Rationalize the shape of the curve shown in Figure 11.8 . (b) The initial absorbance (time =0 s ) is 0.65 De
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