Qualitative Kinetics - Metal/HCl

Metal/HCl



Mg + 2 HCl MgCl2 + H2

or

Zn + 2 HCl ZnCl2 + H2

or

Zn + 2 HC2H3O2 Zn(C2H3O2)2 + H2


In each experiment a piece of metal shot (small pellets), turnings (small pieces) or mesh (very small pieces) is placed in a test tube and either hydrochloric acid (HCl) or acetic acid (HC2H3O2) added. For the purposes of this experiment, assume that metal shot and metal turnings are approximately the same size. In the pictures shown, the test tube on the left contains both the metal and the HCl.

experiment metal used acid added see results
2a Zn (shot) 0.1 M HCl
2b Zn (mesh) 0.1 M HCl
2c Mg (turnings) 0.1 M HCl
2d Zn (shot) 1.0 M HCl
2e Zn (shot) 1.0 M HC2H3O2
2a - 2e
shown together
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