ASSAY                                                                            Filippos
Chatzitofi

                                                                                        F16190

Analyt: Benzoic acid


Volumetric solution: 0,1M sodium hydroxide

Titre of volumetric solution: 0,9998

Type of titration: acid-base titration


                                           Titration No.

                                m [g] (4 decimal places) or V [ml]

                                      Consumption of VS [ml]

                                               ASSAY

                                                1.

0.2002g

14.38ml

87.68%

                                                2.

0.2004g

14.57ml

88.75%

                                                3.

0.1999g

14.08ml

85.98%

                                                4.

0.1998g

14.24ml

87.005%


                                                       Average

87.35%


STATISTICAL EVALUATION:

Range:
      R =2.77

Standard deviation (estimated from range):                         sd = 1.3453

Relative standard deviation:                                                        RSD = 1.5402





CONCLUSION (does your sample meet/not meet Ph. Eur).:

Average values should be between 38,5-61,5, mine is 87,35 so it does not meet ph eur.