Chemistry Lab- Determining enthalpy change of a reaction. Adding zinc to copper sulfate resulted in a displacement reaction that created copper metal to precipitate as a solid.

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Name: Laraib Hussain

Class: IB 1

Chemistry Lab: Experiment 22 – Determining an enthalpy change of reaction

Exp.22 Determining the Enthalpy Change of a reaction

Data Collection

Quantitative Data - Table of Results:

Qualitative Data – Observations:

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  1. Adding zinc to copper sulfate resulted in a displacement reaction that created copper metal to precipitate as a solid. The color of the solid was dark greyish/black.

CuSO4 (aq) + Zn(s) ---> ZnSO4 (aq) + Cu(s)

  1. There was a temperature increase, hence the reaction was exothermic.

Data Processing

I have used the results for Trial 1 in order to determine the enthalpy change of the reaction.

Calculations:

  1. Mass of Zinc powder = (Mass of zinc + filter paper) – (Mass of filter paper)

= (7.52 ± 0.01 g) – (1.50 ± 0.01 g)

= (7.52 – 1.50) ± (0.01 ...

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