Titration Curve Lab
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Turn the stopcock of a burette on the lab bench to add NaOH drop by drop and draw the pH curve. See, through the counts of HA, A⁻, H₃O⁺ and OH⁻ in a particle window and concentration bars, why 0.10 M hydrochloric and acetic acid give different curves, why pH equals pKa at half-equivalence and why a weak acid's equivalence point is basic by salt hydrolysis, then choose an indicator and judge the strength and concentration of an unknown acid.
Key conceptsacid-base titration · titration curve · equivalence point · strong and weak acids · acid ionization constant · half-equivalence point · salt hydrolysis · indicator