3. For the water sample in problem 1, determine the saturation index for calcite at 25°C giventhat aco.- = 0.34 X 10 and that the equilibrium constant for calcite dissolution is4.27 X 10-9.What does the saturation index indicate about the state of saturation with respectto calcite?4. Will nitrate oxidize sulfide in a water with pH = 8 and T = 25°C? Assume that activity isequal to concentration and the concentrations of NO,, HS , SO,, and NH, are all equalto 10 M. The reaction isH* + NO, + HS¯ + H,0 = So, + NH,*.

NO3- can oxidise HS - if value of Kc is very high then it can go in forward direction Kc =108 so…

Answered: to calcite? 4. Will nitrate oxidize…

to calcite? 4. Will nitrate oxidize sulfide in a water with pH = 8 and T = 25°C? Assume that activity is equal to concentration and the concentrations of NO,, HS , SO,, and NH, are all equal

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

3. For the water sample in problem 1, determine the saturation index for calcite at 25°C given
that aco.- = 0.34 X 10 and that the equilibrium constant for calcite dissolution is
4.27 X 10-9.What does the saturation index indicate about the state of saturation with respect
to calcite?
4. Will nitrate oxidize sulfide in a water with pH = 8 and T = 25°C? Assume that activity is
equal to concentration and the concentrations of NO,, HS , SO,, and NH, are all equal
to 10 M. The reaction is
H* + NO, + HS¯ + H,0 = So, + NH,*.

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