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Word Count: 666
AIM To prepare and purify an ester concentrated sulphuric acid sample of nail polish for smell comparison separating funnel and stopper 1 mol L-1 sodium carbonate solutionAfter carefully assembling the apparatus and given a safety approval by the teacher I carefully added the ethanol and glacial acetic acid into the pear shaped flask A few marble chips were added to avoid the larger reactive bursts of the mixture during refluxing that were predicted The condenser was then securely placed on top of the flask clamped in place and connected to the water supply The concentrated sulfuric acid was gathered in a test tube and eight drops were released well inside the condenser on the walls The teacher again committed to safety checks before lighting the Bunsen burner under the flask After it had been lit it was refluxed carefully allowing the condensation ring to rise about a half of the way up the condenser this reoccurred for half an hour After the somewhat clear mixture had cooled for about 5 minutes it was placed in a separating funnel with 20mL of water Once shaken it was left until a small organic layer was visible at the top and most of the water was discarded This washing procedure of the organic layer was repeated with sodium carbonate solution about 20mL and most of this was discarded The 250mL beaker was filled with about 150mL of water and a thin glassy layer the ester was visible on top There was a strong smell emulating from the solution of nail polish remover wafting was not necessary This smell was compared to that of commercial nail polish remover and a slightly stronger smell was noted DISCUSSIONThe relevance of esters strands from the production of such hydrocarbons nowadays imitating those esters that occur naturally such as sweet fragrances and fats and vegetables oils In determining the properties of esters and producing them we are able to produce them with
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