Quantitative preparation of a salt and yield calculation.

Introduction:

Copper(II) sulphate can good be prepared by reacting copper(II) oxide with dilute sulphuric acid. The resulting copper(II) sulphate resultant when cooled can easily crystallize, so the amount of the product can be accurately measured. This lab result can then be compared to the a priori amount to give a % of the yield calculated. The then Copper(II) sulphate crystals are CuSO4.5H2O.

Hypothesis:

It is my opinion that the results we ordain receive from the experiments will differ by quite a bit off, by my presage about 15-25% off the theoretical results one would define by doing the equations of the products sought after. I believe this as the experiment will be taking place in a prepare laboratory which could cause the apparatuses to cause error or human beings error could also take place.

Apparatus:

-         1 measuring piston chamber (200ml ±0.1ml)

-         2 Beakers (250ml ±0.1ml) & larger one

-         Filter paper

-         Scale

-         Funnel

-         Bunsen burner

-          shake up prove mat

-         Stand

Procedure:

1. Collect the Apparatus.

2. Measure out 100 ml (±0.1ml) of 2M dilute sulphuric acid (this is the control agent) and poor into a 250ml beaker (±0.1ml).

3. Warm the acid in the Bunsen burner (DO NOT BOIL).

4.



resume copper sulphate until it is in excess ( this can be added in excess as the Sulphuric Acid is the limiting agent which mean.

5. While still warm and using a larger beaker, filter the solution and wash off the residue. Do this with the funnel on a stand so no residue leeks into the solution.

6. Boil the remaining Copper sulphate solution until about 50% of the solution has evaporated.

7. Leave to cool buck and crystallize.

8. Dry the crystals between fresh filter papers and when amply dry weigh the results.

Result/Data collection:

Amount...

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