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A microscale acid-base titration

Description

In this experiment you will be using microscale titration apparatus to complete an acid-base neutralisation. The aim is to calculate the exact concentration of sodium hydroxide solution.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
a-microscale-acid-base-ti...



Apparatus Chemicals

Each working group will require microscale titration apparatus (Note 1) comprising:

Graduated glass pipette (2 cm3)

Pipette (1 cm3) + pipette filler to fit (or a 1 cm3 plastic syringe)

Plastic syringe (10 cm3)

Fine-tip poly(ethene) dropping pipette (Note 2)

Small lengths of rubber, plastic or silicone tubing

Beakers (10 cm3), 2

Clamp stand with two bosses and clamps

Each working group will require:

Dilute hydrochloric acid, 0.10 M, about 10 cm3

Sodium hydroxide solution, approx. 0.1 M (IRRITANT), about 10 cm3

Phenolphthalein indicator solution (HIGHLY FLAMMABLE), a few drops

Refer to Health & Safety and Technical notes section below for additional information.




2016




In this experiment you will be using microscale titration apparatus to complete an acid-base neutralisation. The aim is to calculate the exact concentration of sodium hydroxide solution.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.