High pressure-high temperature phase diagram of ammonia

S Ninet1, F Datchi

  • 1Institut de Minéralogie et de Physique des Milieux Condensés, Département Physique des Milieux Denses, CNRS UMR 7590, Université Pierre et Marie Curie-Paris VI, Paris Cedex 05, France. sandra.ninet@impmc.jussieu.fr

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Using the ICE table and substituting the Kb value, we calculate the initial pH of 50 mL of 0.1 M ammonia to be 11.11. Addition of 25 mL of 0.1 M hydrochloric acid to this solution of ammonia results in a buffer with an equal concentration of ammonia and ammonium ions. The pH of this buffer can be calculated by substituting these...