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Identification of buffers with indicators

Identification of buffers with indicators

Item no.: P7510300

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Principle

Buffer solutions usually consist of a weak acid and its conjugate base. Acids neutralise hydroxide-ions, bases on the other hand oxonium-ions. A buffer solution is produced by adding an equimolar mixture of a weak acid and its salt (e.g. acetic acid and sodium acetate) or a weak base and its salt (e.g. ammonium chloride and ammonia).

In this experiment students will examine the basic characteristics of a buffer solution by adding a strong base (here: NaOH) and a strong acid (here: HCl) to a buffer solution (here: acetate buffer).

 

What you can learn about

  •  Operation mode of a buffer solution

 

Benefits

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

 

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