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Separating 3 solids

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Introduction

Separating 3 solids Procedure: * 5.4g. of Sand, 7.4g. of Copper Sulfate and 8.3g. of Iron Filings are mixed together with a spatula in a beaker. * A magnet is then produced and the small-grey Iron is extracted. * Filter Paper is used to filter out the damp Sand. * A clear-blue Copper Sulfate solution is obtained. * Copper Sulfate solution is poured into an crystallising basin. ...read more.

Middle

In order to simplify the separation of the Iron Filings, and solve the problem of small pieces of Iron staying attached to the Magnet, I decided to wrap the magnet with a thin layer of paper towel that could then slide off the magnet to release the Iron Filings and drastically decrease the chances of losing pieces of Iron. The Sand weighed more after rather than before because it still had some water in it, whilst the Copper Sulfate weighed slightly less ...read more.

Conclusion

A Weighing machine that could handle up to 2kg whilst at the same time not sacrificing accuracy could have easily solved this. Another slight problem would be that of our assumption on the amount of water present in the crystals of Copper Sulfate in regards to before and after the experiment, although there is very little that we could have done about it. ...read more.

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