Explain the quantity of dissolved oxygen in natural waters

Reference no: EM13647292

A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balance the following chemical equations in that series under the conditions indicated (and include phases):

a. in basic solution

Mn^(2+) (aq) + O2 (g) ---> MnO2 (s)

b. in acidic solution

MnO2 (s) + I^(-) (aq) ---> Mn^(2+) (aq) + I2 (s)

c. in neutral solution

I2 (s) + S2O3^(2-) (aq) ---> I^(-) (aq) + S4O6^(2-) (aq)

Reference no: EM13647292

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