Buffer Solutions: Sodium Carbonate titrated with HCl


Nice paper on buffer solutions, worth reading: http://faculty.ncc.edu/LinkClick.aspx?fileticket=KBwHmVVpmUk%3D&tabid=1902

During an experiment I performed in the lab we got the following results (Click to Zoom):

Phenolphtalein pH range: 9.6 – 10 (Not useful in this experiment)
Methyl Orange pH range: 3.2 – 4.4 – Gets the equivalence point just right

Sodium Carbonate with Hydrochloric AcidPhenolphtalein - SodiumCarbonate with Hydrochloric acidMethyl Orange - SodiumCarbonate and Hydrochloric acid

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