BRAINCAKEHess's Law Example 7
Worked example: using two measured reactions
The enthalpy change for hydrating anhydrous copper(II) sulfate cannot be measured directly, because it is hard to add exactly five moles of water to the solid and measure the temperature change accurately.
CuSO4(s) + 5H2O(l) → CuSO4·5H2O(s)
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Key terms in this lesson
- enthalpy change of solution
- The enthalpy change when one mole of a substance dissolves completely in a solvent to give an infinitely dilute solution.
- calorimeter
- An insulated container used to measure the temperature change of a reaction so as little heat as possible is lost to the surroundings.
More in Enthalpy
- Hess's Law Example 2
- Hess's Law Example 3
- Hess's Law Example 4
- Hess's Law Example 5
- Hess's Law Example 6
- Hess's Law Example 8
- Hess's Law Example 9
- Hess's Law Example 10
All 21 lessons in Enthalpy · All Edexcel AS-level Chemistry topics