Experiment C2: Acid-Base Titration (pH Sensor)

A buffer resists changes in pH when acid or base is added. Alka-Seltzer acts as a buffer by providing an antacid, citric acid, to neutralize stomach acidity and sodium bicarbonate to neutralize basicity. When Alka-Seltzer dissolves in water these components react: 3NaHCO3 (aq) + H3C3H5O7 (aq) (Na3C3H5O7 (aq) + 3CO2 (g) + 3H2O (l) ................
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