Making Salts 2

Aim: To produce copper sulfate salt by reacting copper oxide with and acid

Method
1.Add 20ml of sulfuric acid to a 100ml Beaker. Heat the acid until it reaches 70°c. Turn off your bunsen burner.

2.Once heated, use a spatula to add pea-sized portions or copper oxide to the basket. Stir the mixture for 30 seconds.

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

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

5. Make sure the Beaker is cool enough to hold at the top. The contents should still be hot.

6.Gently swirl the contents of the Beaker to mix, and then pour into the filter paper in the funnel. Allow to filter through.

7. Rinse the Beaker you used to heat the mixture previously, and place it back on top of your tripod filled with 50-60ml of water. 

8.Place the evaporating basin on top of the Beaker and carefully pour some of the solution from the Beaker into the evaporating basin.

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

10. leave the evaporating basin to cool. Once cool, move the evaporating  basin to a warm place where it will no be disturbed (I.e a window-sill) and observe over the next few days. Blue copper sulfate crystals should form.

Making Indicators

Aim: To make acid-base indicators using everyday substances. Method for Beetroot 1. Chop The beetroot into small pieces until you have enough to fill 2 cubs 2. Place beetroot in a large beaker and add water to cover it 3. Boil over a Bunsen burner for at least ten min for colour out of the cabbage 4. Filter out the plant material to obtain a red-purple-bluish coloured liquid. This liquid is at about pH 7 5. Place in a small beaker and leave to one side Equipment: Beetroot, a beaker, water, tripod, Bunsen burner, Gansen mat, Results Acid Base Beetroot Yellow Yellow Cabbage Red, pink Green Tea Yellow Yellow Tumeric Yellow Red Cranberry Yellow Green Discussion: We went through the process of adding different chemicals to our everyday substance indicators and each chemical changed to show us if it was a strong base, weak base or strong acid and weak acid by colour changing. Conclusion: We made our indicators to show what chemicals are acids and bases. I think that beetroot worked better.