Neutralisation - 'curing acidity'

Description

This simple experiment allows students to follow the pH and temperature changes when an acidic solution is gradually neutralised.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
neutralisation-curing-aci...



Apparatus Chemicals

Eye protection

Each group of students will require:

Beaker (100 cm3)

Measuring cylinder (25 cm3)

Spotting tile (white plastic, 12 cavities)

Glass rod

Stirring thermometer (-10˚C - 110˚C) or electronic temperature probe (Note 1)

Spatula

Universal indicator paper (full range, pH 1-14) (Note 2)

Universal indicator pH colour chart (full range pH 1-14)

Calcium hydroxide powder (IRRITANT)

Calcium carbonate powder

Vinegar, 20-30 cm3

Distilled (or deionised) water, in wash bottles

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

 

 

Calcium carbonate





This simple experiment allows students to follow the pH and temperature changes when an acidic solution is gradually neutralised.

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.