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A thermometric titration

Description

The aim of this experiment is to measure the maximum temperature reached during the reaction between hydrochloric acid and sodium hydroxide solution. The volumes that have reacted at the highest temperature, represent the ‘end point’ of the titration.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
a-thermometric-titration



Apparatus Chemicals

Eye protection: goggles

Each group will need:

Thermometer (0 – 100 °C) (Note 1)

Two insulated (polystyrene) cups

Beaker (250 cm3)

Burette (50 cm3)

Burette stand

Clamp and stand (optional)

Cork, one-holed (optional - to fit thermometer)

Pipette (20 or 25 cm3)

Pipette safety filler

Each group will need:

Hydrochloric acid, 2.00 M (IRRITANT), about 75 cm3

Sodium hydroxide solution, 1.50 M (CORROSIVE), about 30 cm3

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

 







The aim of this experiment is to measure the maximum temperature reached during the reaction between hydrochloric acid and sodium hydroxide solution. The volumes that have reacted at the highest temperature, represent the ‘end point’ of the titration.

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.

The experiment is also part of the Royal Society of Chemistry's Continuing Professional Development course: Chemistry for non-specialists