Investigate the reaction between sodium thiosulphate and acid at different temperatures.
Member rating: No Rating | Words: | Submitted: Thu Mar 24 2005
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Chemistry Coursework Aim - The National Rivers Authority (NRA) is one of a number of organisations which fine companies if the companies are released prohibited chemicals into the environment. One chemical, which is regarded as harmful, is sodium thiosulphate. The chemical used in photographic processing industry to remove unwanted silver bromide from exposed film. Photographic developers are therefore looking into alternative approaches to dealing with the leftover sodium thiosulphate. One answer might be to convert the waste sodium thiosulphate solution into some thing harmless, and preferably useful. In this assignment you have to investigate the reaction between sodium thiosulphate and acid at different temperatures. Prediction - In this investigation I expect to find as I increase the temperature the reaction will take place faster. This is because as the temperature increases it gives more energy to the sodium thiosulphate and hydrochloric acid particles causing them to collide more often and with more...

