electrochemistry

소개글

미국에서 대학교를 다니시는 분 들 중 Chemistry 121 을 수강하시는 분께 추천합니다.
Chemistry 121 lab report 입니다. 어떻게 lab report를 써야하는지 모르시는 분께 지침판이 될 것이라고 생각합니다.
이 레포트의 grade는 A를 받았습니다.
여러분께 많은 도움이 되기를 바랍니다.

목차

1.Purpose
2. procedure and Observation
3. Experimental Measurements and Data
4. Calculations and Data analysis
5.Conclusion

본문내용

Purpose:
The purpose of this lab is to identify oxidation and reduction reactions. Then be able to classify half-cell reactions in order of their tendency to gain or loose electrons.
Predict electrochemical cell potentials, given the identity of the component half-cells and the electrochemical series.

Procedure & Observation:
The first part of the experiment involved voltage measurement and a forced electrochemical reaction, by observing them through a demonstration conducted by the instructor. A piece of copper wire was connected to a paperclip, then a 9 volt battery. The paperclip and copper wire were submerged in the CuSO4 solution in the glass beaker for around a minute. The copper ions from the CuSO4 pick up electrons from the battery at the surface of the paperclip thus converting the copper ion into metallic copper. An equal number of copper atoms on the copper wire are stripped of two electrons each, becoming Cu2+ and then move into the CuSO4 solution to balance the charge of the negative sulfate solution.

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