Titration of a polyprotic acid with a strong base with the aid a suitable indicator

Article no. P7511000 | Type: Experiments

10 Minutes
30 Minutes
grades 7-10
heavy
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Student set Titration and analytical chemistry, TESS advanced Chemistry

Article no. 25303-88 | Type: Set

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Student set Titration and analytical chemistrydigital, TESS advanced Chemistry

Article no. 25303-88D | Type: Set

Principle

During this experiment, the students have to determine the unknown concentration of sulphuric acid (solution to be analysed) with the aid of a suitable indicator (here: phenolphthalein). For this purpose, a known volume of the acid is titrated with a volume of a sodium hydroxide solution of a known concentration (standard solution) until the indicator changes colour. The used volume of the standard solution and its concentration are then used to calculate the concentration of the solution being analysed.


Learning objectives

  • Titration of sulphuric acid

 

Benefits

  • Experiment literature available for pupils and teachers: Minimum preparation time
  • Simple teaching and efficient learning by using the available interactive experiment literature

 

Name
File name
File size
File type
Digital learning
(en) Experiment guide
p7511000e .pdf
File size 1.96 Mb
pdf
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(de) Versuchsbeschreibung
p7511000_de .pdf
File size 2.44 Mb
pdf
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(ru) Versuchsbeschreibung
p7511000_ru .pdf
File size 2.67 Mb
pdf
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Titration of a polyprotic acid with a strong base with the aid a suitable indicator
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