In this short video, Denise Ralph RSciTech will show how to demonstrate a neutralisation reaction using sodium hydroxide, which is a required GCSE Chemistry practical covering temperature changes in reacting solutions.
The aim of the experiment is to monitor and measure the temperature change as the reaction occurs.
The demonstration uses a beaker but an insulated cup like a Styrofoam cup could be used to reduce heat loss and for an additional layer of safety. Styrofoam has low thermal conductivity, meaning it does not allow heat to easily pass through it. This property helps in containing the heat generated during the exothermic reaction within the cup, allowing for better temperature measurement and observation.
You will need:
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