The autoprotolysis constant, K hw , for heavy water, D 2 O, at 25C is 1.35 *

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The autoprotolysis constant, Khw, for heavy water, D2O, at 25°C is 1.35 * 10–15.

(a) Write the chemical equation for the autoprotolysis (more precisely, the autodeuterolysis, because a deuteron is being transferred) of D2O. 

(b) Evaluate pKhw for D2O at 25°C.

(c) Calculate the molar concentrations of D3O+ and OD2 in pure heavy water at 25°C.

(d) Evaluate the pD and pOD of heavy water at 25°C. 

(e) Find the relation between pD, pOD, and pKhw.

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Chemical Principles The Quest For Insight

ISBN: 9781464183959

7th Edition

Authors: Peter Atkins, Loretta Jones, Leroy Laverman

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