Saturday, December 14, 2013

Quantitative preparation of a salt and yield calculation.

Introduction: Copper(II) sulphate butt good be brisk 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(prenominal) 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 uplift from the experiments will differ by quite a insect bite off, by my presage about 15-25% off the theoretical results matchless 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 fallacy or human beings error could also take place. apparatus: -         1 measuring piston chamber (200ml ±0.1ml) -         2 Beakers (250ml ±0.1ml) & adenosine monophosphate; larger one -         Filter paper -         Scale -          displace -         Bunsen burner -          shake up prove mat -          digest 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.
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add copper sulphate until it is in excess ( this can be added in excess as the Sulphuric Acid is the narrowing agent which mean. 5. While still warm and using a larger beaker, filter the resultant role ! 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 charge and crystallize. 8. Dry the crystals between fresh filter papers and when high dry weigh the results. Result/Data collection: Amount... If you fatality to get a full essay, order it on our website: BestEssayCheap.com

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