Service
Principle
When a solid electrolyte dissolves in water, a positive or negative heat effect occurs as a result of the destruction of the crystal lattice and the formation of hydrated ions. The enthalpy of hydration of copper sulphate can be calculated from the different heats of reaction measured when anhydrous and hydrated copper sulphate are separately dissolved in water.
Benefits
- Calorimeters with particularly high capacitance
- Part of a system solution - Easily expandable for further experiments
- Simplified implementation: all pre-settings already prepared
Tasks
- Record temperature-time curves for the dissolution of anhydrous copper sulphate and hydrated copper sulphate in water.
- Calculate the hydration enthalpy of anhydrous copper(II)sulphate.
Learning objectives
- Integral enthalpy of solution
- Hess's law
- Lattice energy
- Ion solvation
- Calorimetry
Necessary accessories
- Precision balance 6200g/0.01g
This experiment requires a computer. Software provided.
Device name
Item No.
Quantity
Item No. 12901-01
1
Item No. 12925-00
1
Name
Filename
Filesize
Filetyp
Digital learning
(en) Versuchsbeschreibung
p3020767_en .pdf
Filesize 1.79 Mb
pdf
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Determination of the hydration enthalpy of an electrolyte (solution enthalpy) with Cobra SMARTsense
- .H5P
Filesize -
.H5P
