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The Activity Series. Aim - To determine the relative activity of several metals

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Introduction

The Activity Series AIM To determine the relative activity of several metals MATERIALS * Calcium metal granules (dry) * Copper metal foil * Zinc metal granules * Lead strips * Tin granules * Iron nails * Magnesium ribbon * Tap water * HCl acid * Forceps * Safety gloves * Safety glasses * Test tubes * Test tube rack * Beakers SAFETY * Do not ingest chemicals * Wear safety glasses and goggles VARIABLES: Control: Molarity and amount of HCl used, amount of water used, amount of metal used, amount of time given to react Dependent: Reactivity of each metal Independent: METHOD 1. ...read more.

Middle

Add some of each of the metals that did not previously react into a test tube, and observe and changes 7. If any metals react, put them on the side as they will no longer be used. 8. Finally, add some of each of the materials that did not previously react into a beaker with either copper sulphate, and observe any changes. RESULTS Reaction with water Metal Observations Calcium Ca(s) + 2H2O(g) � Ca(OH)2(aq) + H2(g) Initial reaction is fast, but gradually slows down. Bubbles were formed (effervescence), hydrogen gas was evolved, and the piece of calcium was splashing around as it dissolved, forming a cloudy solution due to the calcium hydroxide. ...read more.

Conclusion

Iron Fe(s) + 2HCl(aq) � FeCl2(aq) + H2(g) Slower reaction with production of bubbles, indicating hydrogen is evolved. Displacement Reaction Metal Observations Tin Sn(s) + CuSO4(aq) � Cu(s) + SnSO4(aq) The surface turns darker in colour, indication of a displacement reaction Lead Pb(s) + CuSO4(aq) � Cu(s) + PbSO4(aq) The surface turns to a brownish colour as the lead displaces copper in the copper sulphate solution Therefore the least reactive metal is copper. EVALUATION From the results we can see that the activity of the metals is as follows (most to least reactive): Calcium --> Magnesium --> Zinc --> Iron --> Tin --> Lead --> Copper CONCLUSION During this investigation, I was able to accurately determine the reactivity series of various metals. ...read more.

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