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→Key Stage 4
===Method===
====[[Temperature]] Change and [[Volume (Space)|Volume]] of [[Alkali]] used to [[Neutralise (Chemistry)|Neutralise]] an [[Acid]]====
#[[Measure]] exactly 30ml 2[[Molarity|M]] [[Hydrochloric Acid]] using a [[Measuring Cylinder]].
#Add the 30ml of [[Hydrochloric Acid]] to a polystyrene cup.
#Return the lid immediately and stir with the [[thermometer]] while observing the [[temperature]]. Once the [[temperature]] stops increasing, record this [[temperature]].
#Repeat steps 4-6 until a total of 40ml of [[Sodium Hydroxide]] [[solution]] has been added.
#Repeat the experiment another 2 times to calculate an [[Mean Average|average]] for each [[result]].