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Determination of the pKa Value of Phenolphthalein by Means of Absorbance Measurements
Medical Science Teaching
2013/2/21
We here report a laboratory protocol for the determination of the pKa value of an acid by means of determinations obtained with a spectrophotometer. Students determine the acidity constant (Ka) and th...
Effects of salinity changes on the photodegradation and ultraviolet–visible absorbance of terrestrial dissolved organic matter
salinity changes photodegradation ultraviolet– visible absorbance terrestrial dissolved organic matter
2014/5/5
We performed laboratory studies to determine the effects of salinity on the photodegradation of dissolved organic matter (DOM) from the Great Dismal Swamp, Virginia, an important source of terrestrial...