The experimental technique used to find out the heat energy absorbed or released during a chemical reaction is known as Calorimetry.

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Chemistry Investigation: Calorimetry

Rajarshi Putatunda 11T

The experimental technique used to find out the heat energy absorbed or released during a chemical reaction is known as Calorimetry.

The reaction I am going to look at in this investigation is the reaction between Zinc (Zn) and Copper Sulphate (CuSO ). This is a displacement reaction and when the two substances react together, the zinc replaces the copper in the copper sulphate to form zinc sulphate. The reaction is shown in a symbol equation below: The reaction is an exothermic reaction as heat is given off.

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Zn (s) + CuSO  (aq) = ZnSO  (aq) + Cu (s)

In this investigation, I am going look at how the change in the mass of zinc affects the heat energy released during the reaction. Here are the equipment needed for the investigation:

  • Polystyrene cup with a polystyrene lid
  • Copper sulphate solution
  • Zinc powder
  • Thermometer
  • Beaker

Here is the method: I will be taking a fixed volume of 50cm  of copper sulphate and pour it in the polystyrene cup. I will measure the initial temperature of the copper sulphate after the temperature has become ...

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