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Determination of the enthalpy of neutralisation with Cobra4

Determination of the enthalpy of neutralisation with Cobra4

Item no.: P3020861

Difficulty Expenditure of Time print
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Principle

When a strong acid is neutralised with a strong base in dilute solution, the same amount of heat is always released. If the reaction takes place under isobaric conditions, this heat is known as the enthalpy of neutralisation. The chemical reaction which generates this heat is the reaction of protons and hydroxyl ions to form undissociated water. It therefore correlates to the enthalpy of formation of water from these ions.

Benefits

  • Simplified implementation: all pre-settings already prepared
  • Calorimeters with particularly high capacitance
  • Part of a system solution - Easily expandable for further experiments

Tasks

  1. Measure the temperature change during the neutralisation of a dilute potassium hydroxide solution with dilute hydrochloric acid.
  2. Calculate the enthalpy of neutralisation.

What you can learn about

  • Enthalpy of neutralisation
  • Calorimetry
  • Heat capacity

Necessary accessories

  • Precision balance 6200g/0.01g
Document     Filesize
p3020861e.pdf Experiment guide, English 387.96 KB

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