Chemistry Acid base Titration Essay Samples and Topic Ideas

Titration of Sodium Phosphate Volume of 1.0M NaOH added(mL) Measured pH Volume of 1.0M NaOH added(mL) Measured pH Volume of 1.0M NaOH added(mL) Measured pH Volume of 1.0M NaOH added(mL) Measured pH 0 4.47 3.5 6.60 7.0 7.34 10.0 10.59 0.5 5.57 4.0 6.70 7.5 7.48 10.5 10.61 1.0 5.90 4.5 6.80 8.0 7.67 11.0 10.97 1.5 6.10 5.0 6.90 8.5 7.95 11.25 11.04 2.0 6.25 5.5 7.00 9.0 8.65 2.5 6.38 6.0 7.10 9.5 10.2 3.0 6.50 6.5 7.22 9.75 10.44 Fig 1. Titration Curve (pH vs. Volume of Na) From the graph, at pH 8, the volume of NaOH added is obtained as 8.238. From the relation; pH=pKa+log(A-HA)The pKa value of sodium phosphate (NaH2PO4 is given as; =8-(log(A-HA)Molarity of NaOH is given as; Molarity =...

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