@Brian_BH When you say “visual identification of a titration graph,” does the question ask to identify a titration graph out of other arbitrary graphs? As in, it’d be important to recognize the usual sigmoidal shape of a titration curve?
Sorry, no, more correctly it gives a series of example titrations requiring one to understand that the midpoint of one of the titration curves will correspond to a the given pka; requiring the understanding that, at a midpoint, ph = pka. Discriminator options are given in which these values don’t match up (or there are other irregularities, such as too many midpoints for the given number of pka’s, etc.).
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