Acid Base Titration Lab
Autor: Ixk859 • December 9, 2011 • Essay • 269 Words (2 Pages) • 1,701 Views
Chemistry 40S
Acid-Base Titration Lab
Determining the concentration of a hydrochloric acid solution by acid-base titration
Ira C. Kowall
11/2/2011
Purpose
Determine the concentration of a solution of hydrochloric acid, using a primary standard aqueous NaOH solution.
Materials
250 mL beakers (2)
50 mL burets (2)
Double buret clamp
Ring stand
250 mL Erienmeyer flask
Standardized solution of sodium hydroxide
Unknown solution of hydrochloric acid
Phenolphthalein solution
Diagram
Procedure: see handout
Data Table (observations)
Measurement Readings Trial 1 Trial 2 Trial 3
[NaOH] 1 mol/L 1mol/L 1mol/L
Initial base buret 0.0 mL 8.9 mL 0.00 mL
Final base buret 42.5 mL 44.3 mL 28.7 mL
Volume NaOH 42.5 mL 35.3 mL 28.7 mL
Initial acid buret 0.1 mL 26 mL 13.4 mL
Final acid buret 26 mL 47.6 mL 33.5 mL
Volume of HCl 25.9 mL 21.6 mL 20.1 mL
Analysis
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