A solution of h2so4 and ki is then added to conver the mno2, Ask an Expert

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The amount of oxygen dissolved in a water sample at 25 deg C can be determined by titration. The first step is to add solutions of MnSO4 and NaOH to the water to convert the dissolved oxygen to MnO2. A solution of H2SO4 and KI is then added to conver the MnO2 to MN^2+, and the iodide is converted to I2. The I2 is then titrated with standardized Na2S2O3.

Calculate the amount of O2 in 25.0mL of water if the titration requires 2.45ml of 0.0112 M Na2S2O3 solution.

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Category:- Chemistry
Reference No.:- M9501521

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