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# Rate of S(IV) to S(VI) at Different pHs using O3 and H2O2

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If the ozone concentration in the plume is 80 ppb, calculate the liquid-phase rate of S(IV) oxidation in the plume by ozone.

The rate for the oxidation of SO2 by H2O2 is given by the expression: please see attachment for expression.

where k = 7.45 &#61620; 107 M-2 s-1 and K = 13 M-1. If the pH of the rainwater is 4.3, calculate the rate of SO2 oxidation by H2O2 in the plume if the H2O2 concentration is 1 ppb. Which oxidation (O3 or H2O2) sequence dominates at a pH of 4.3?

At what pH would the rates of SO2 oxidation by H2O2 and O3 be equal?

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https://brainmass.com/chemistry/physical-chemistry/rate-different-phs-h2o2-153924

#### Solution Preview

If the ozone concentration in the plume is 80 ppb, calculate the liquid-phase rate of S(IV) oxidation in the plume by ozone.

The rate for the oxidation of SO2 by H2O2 can be expressed by:

where k = 7.45  107 M-2 s-1 and K = 13 M-1. If the pH of the rainwater is 4.3, calculate the rate of SO2 oxidation by H2O2 in the plume if the H2O2 concentration is 1 ...

#### Solution Summary

Rate of S(IV) to S(VI) at Different pHs using O3 and H2O2 is calculated.

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