An environmental chemist analyzes the effluent (waste material) released from an industrial process. The effluent contains benzoic acid, CGHSCOOH(aq), the concentration of which must be monitored to ensure that it does not
exceed environmentally safe levels.
The results of the analysis of the effluent are shown below.
4.
Titration of 70.0 mL effluent sample with 0.156 M NaOH(aq)
Trial
1
2.
3
Final buret reading (mL)
17.32
28.75
40.23
Initial buret reading (mL)
0.62
17.33
28.71
Volume of NaOH(aq) added
(mL)
12.88
1.29
The concentration of the benzoic acid in the effluent is mol/L.