Exponential dilution flask - American Chemical Society

pH” was 7. In this instance, the conditioning solution was. KH2P04(0.02 m), Na2HP04(0.02 m), NaCl(0.02 m) and the emf of the cell formed by the imme...
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ANALYTICAL CHEMISTRY, VOL. 50, NO. 12, OCTOBER 1978

This was the maximum period over which the cell was tested using the recorder. However, the emf value for 0.02 m hydrochloric acid varied little over a 24-h period and agreement to within 0.1 mV (