The variables are:
volume: Volume of acid added to the sample in ml
E: Potential measured during the titration in mV
temperature: Temperature in degrees Celsius
weight: Weight of the sample in g
S: Salinity
normality : Normality of the acid
ETris: Potential used for the calibration of the electrode in mV
pHTris: pH used for the calibration of the electrode with the TRIS buffer
alkalinity
A data frame with 29 rows and 8 variables