Questions and answers
Please don't refuse to report technique of determination of hydrogen number in distilled water both before washing with it for reaction Wasserman:a and after washing, and also in physiological solution of sodium chloride 0,85%. Answer: The hydrogen number (Ph) of any solution, regardless of its composition, is determined equally-either electrometrically or colorimetrically. The latter method, colorimetric, is much easier, faster and does not require any special facilities other than a set of standard indicator solutions.
Board E.
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