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AS Chemistry - Investigate the effect of sodium carbonate on hard water
Member rating: No Rating | Words: 2675 | Submitted: Wed Jul 04 2007
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Chemistry Coursework The aim of this experiment is to investigate the effect of sodium carbonate on hard water. To do this, a pipette and a burette are used to help give accurate readings, a conical flask will then be used to shake the mixture together and see if a permanent lather is formed. Diagram of equipment to be used in the experiment: A burette will be used to measure an amount of soap solution. It is a piece of equipment that can measure to an accuracy of 1/20cm³. An electronic balance (measuring to 3 decimal places) will be used to accurately measure the correct amount of sodium carbonate; a pipette will be used to measure exactly 25cm³ of water at 20oC, which will be added to the soap solution. This solution, together with the soap solution, water and sodium carbonate, will be put into a conical flask, corked and shaken. The conical flask...
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