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Created page with "==Key Stage 4== ===Meaning=== Investigate the effects of a variable on the temperature change during the reaction between two chemicals. ===..."
==Key Stage 4==
===Meaning===
Investigate the effects of a [[variable]] on the [[temperature]] change during the [[Chemical Reaction|reaction]] between two [[chemical]]s.
===Method===
====[[Temperature]] Change and [[Volume (Space)|Volume]] of [[Alkali]] used to [[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.
#Add a lid with [[thermometer]] through the middle to measures the starting [[temperature]] of the [[solution]].
#Using [[Measuring Cylinder]] (that has not been used for the [[acid]]) [[measure]] exactly 5ml 2[[Molarity|M]] [[Sodium Hydroxide]] [[solution]].
#Briefly remove the lid to add the 5ml [[Sodium Hydroxide]] [[solution]] to the 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.
===Meaning===
Investigate the effects of a [[variable]] on the [[temperature]] change during the [[Chemical Reaction|reaction]] between two [[chemical]]s.
===Method===
====[[Temperature]] Change and [[Volume (Space)|Volume]] of [[Alkali]] used to [[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.
#Add a lid with [[thermometer]] through the middle to measures the starting [[temperature]] of the [[solution]].
#Using [[Measuring Cylinder]] (that has not been used for the [[acid]]) [[measure]] exactly 5ml 2[[Molarity|M]] [[Sodium Hydroxide]] [[solution]].
#Briefly remove the lid to add the 5ml [[Sodium Hydroxide]] [[solution]] to the 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.