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Thursday 30 May 2019

Making salts 2

Aim To produce copper sulfate by reacting copper oxide with an acid.





Method

Add 2oml of sulfuric acid to a 100 ml beaker. Heat the acid until it reaches 70 c. Turn off your bunsen burner.

Once heated use a spatula to add pea-sized portions of copper oxide to the beaker stir the mixture for 30 seconds.

Repeat step 2 until no more will dissolve. Allow the beaker to cool.

Fold the filter paper and place it in the funnel. Place the filter funnel into the second beaker.

Make sure the beaker is cool enough to hold at the top. The contents should still be hot. You may need your teacher to complete this step.

Gently swirl the contents of the beaker to mix and then our into the filter paper in the funnel. Allow to filter through.

Rince the beaker you used to heat the mixture previously and place it back on top of your tripod with 50-60 ml of water.

Place the evaporating basin on top of the beaker and carefully pour some of the solutions from the beaker into the evaporating basin.

Gently heat the beaker until the solution in the evaporating basin has reduced by half.

Leave the evaporating basin to cool. Once cool, move the evaporating basin to a warm place where it will not be disturbed ( i.e a window sill) and observe over the next few days. Blue copper sulfate crystals should form.



Results
Our results were good but we did not get enough time to boil it properly and we still have a tiny bit of liquid left and there are little diamond crystals in the evaporating basin.







This is me and my buddy's salt creation

This is what another group got from there salt creation.
Which was better than ours because there's boiled longer than ours.


Discussion 

After we boiled the solution we left the basin sitting on the bench overnight and came back the next day the crystals started to appear but we still have liquid left in the basin because we did not have enough time to boil it for all the liquid to disappear


Conclusion 

Did we manage to make lots of diamond crystals by boiling 

No, we did not because we started the experiment a bit late and we did not have enough time to boil the solution long enough for the liquid to dissolve.













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