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To draw and explain the shape of graphs of pH against volume of titrant for titrations involving monoprotic acids and bases.
Member rating: No Rating | Words: | Submitted: Wed Oct 22 2003
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Problem: To draw and explain the shape of graphs of pH against volume of titrant for titrations involving monoprotic acids and bases. The combinations we had were: 1) strong acid + strong base (titrant), 2) weak acid + strong base (titrant) and 3) weak base + strong acid (titrant). Data collection: Procedure: We had the different acids and bases in the beaker respectively in the burette and dropped the titrant into the beaker where we had a pH-meter and recorded the result. 1) We had HCl in a 20 ml beaker and NaOH in a 50 ml burette and a few drops of BTB. 2) We had HAc in a 20 ml beaker and NaOH in a 50 ml burette and a few drops of BTB. 3) We had NH3 in a 20 ml beaker and HCl in a 50 ml burette and a few drops of BTB. The results were all rather similar; the graph...
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