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To measure the energy released by a series of alcohols.
Member rating: No Rating | Words: | Submitted: Tue Oct 21 2003
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Bashori Rahman 10T Chemistry Coursework Aim: - To measure the energy released by a series of alcohols. Equipment: - 6 different alcohols - Matches - Clamp + clamp stand - Measuring cylinder - Tin can - Weighing scales - Thermometer Research: Water and carbon dioxide is formed when the alcohol reacts with oxygen in the air. Heat energy is released when new bonds are formed between the water and carbon dioxide molecules. Risk assessments: - Alcohols are very dangerous and highly flammable so I must be careful when using them. The lids must be secure at all times. - Safety goggles must be worn at all times throughout the experiment. - All loose items must be tucked away, e.g. shirts and ties. Method: - Measure 50cm³ of water and put it in the tin can. - Clamp the tin onto a clamp stand. - Record the starting temperature of the water. - Weigh the alcohol. - Put the chosen alcohol under the tin allowing the flame to just touch...
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