Suppose that something had gone wrong in the Big Bang, and instead of ord inary hydrogen there was an abundance of deuterium in the universe . There would be many subtle changes in equilibria, particularly the deuteron transfer equilibria of heavy atoms and bases. The Kw for D2O, heavy water, at 25 °C is 1.35 x 10-15. (a) Write the chemical equation for the autoprotolysis (more precisely, autodeuterolysis) of D2O. (b) Evaluate pKw for D2O at 25 ° C. (c) Calculate the molar concentrations of D3O+ and OD- in neutral heavy water at 25 °C . (d) Evaluate the pD and pOD of neutral heavy water at 25 °C. (e) Formulate the relation between pD, pOD, andpKw(D2O).
Suppose that something had gone wrong in the Big Bang, and instead of ord inary hydrogen there was an abundance of deuterium in the universe . There would be many subtle changes in equilibria, particularly the deuteron transfer equilibria of heavy atoms and bases. The Kw for D2O, heavy water, at 25 °C is 1.35 x 10-15. (a) Write the chemical equation for the autoprotolysis (more precisely, autodeuterolysis) of D2O. (b) Evaluate pKw for D2O at 25 ° C. (c) Calculate the molar concentrations of D3O+ and OD- in neutral heavy water at 25 °C . (d) Evaluate the pD and pOD of neutral heavy water at 25 °C. (e) Formulate the relation between pD, pOD, andpKw(D2O).
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
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 3RQ: Table 17-1 lists common half-reactions along with the standard reduction potential associated with...
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Suppose that something had gone wrong in the Big Bang, and instead of ord inary hydrogen there was an abundance of deuterium in the universe . There would be many subtle changes in equilibria, particularly the deuteron transfer equilibria of heavy atoms and bases. The Kw for D2O, heavy water, at 25 °C is 1.35 x 10-15. (a) Write the chemical equation for the autoprotolysis (more precisely, autodeuterolysis) of D2O. (b) Evaluate pKw for D2O at 25 ° C. (c) Calculate the molar concentrations of D3O+ and OD- in neutral heavy water at 25 °C . (d) Evaluate the pD and pOD of neutral heavy water at 25 °C. (e) Formulate the relation between pD, pOD, and
pKw(D2O).
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