Chemistry Essay | Rate of Reaction- Sodium Thiosulfate and Hcl

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Rate of Reaction- Sodium Thiosulfate and Hcl

Summary: Study of rate of reaction between Sodium Thiosulfate and HCl, GCSE coursework. Identifies that the rate is slower when diluted because the water particles force the sodium thiosulfate particles to become more dispersed and so there are less successful collisions at their activation energy meaning it takes longer for the sulphur particles to be produced and thus it takes longer for the solution to turn cloudy.
Aim:

The aim of this experiment is to find out the effect of concentration on the reaction between Sodium Thiosulfate and Hydrochloric acid. The equation for this reaction is: 2HCl + Na S O 2NaCl + SO + S + H O

Method:

· Mix Thiosulfate and distilled water in required ratio in a glass beaker.

· Place the beaker on a mat marked with an `X'

· Add 5ml of Hydrochloric acid and start timing.

· When the cross beneath has disappeared stop timing and record results.

Safety/ Fair Test:

The solution of HCl could burn skin or damage clothing; avoid skin contact with acid. Reactions should be carried out in a well-ventilated room; some poisonous SO2(g) is produced. Goggles should be worn throughout the experiment.

To make this a fair test the volume of Sodium Thiosulfate mixed with the distilled water will always be 50ml in total. The...

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This section contains 796 words
(approx. 3 pages at 300 words per page)
Buy the Student Essay on Rate of Reaction- Sodium Thiosulfate and Hcl
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