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Essays in Organic Chemistry category
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Hydrogen as an alternative fuel
... energy contained in the hydrogen molecule into electrical energy. Hydrogen can react with oxygen to produce electricity in a fuel cell. Hydrogen is the lightest element occurring in nature and contains a large amount of energy in its chemical bond. ...
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hydrogen peroxide experiment
... as the solid can be tapped in slowly as the time that it takes to get into the flask is not significant. 5. The 20cm3 of Hydrogen peroxide solution will be poured in and the bung replaced immediately. The stop clock ...
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Hydrolysis of an Ester
... pink and a precipitate formed immediately. I then filtered the solution under reduced pressure. This left white, needle shaped crystals, which I washed with a minimal amount of distilled water. 4. I then placed these carefully into a boiling tube and ...
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I am going to investigate how and why the enthalpy change is affected by the molecular structure of the alcohols under conditions, which I have stated under 'Plan' below.
... Water level will be the same for each of the alcohols combusted. All of procedures are to be carried out just to make the experiment fair. Materials Only the following straight-chained alcohols will be used: * Methanol(l) CH3OH * Ethanol(l) CH3CH2OH * Propan-1-ol(l) CH3CH2CH2OH * Butan-1-ol(l) CH3(CH2)2CH2OH * Propan-2-ol(l) CH3CH(OH)CH3 These alcohols are ...
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If There Is a Relationship Between the Number of Carbon Atoms In Several Different Alcohols and the Heat of Combustion of Those Alcohols.
... 2 - 6 twice more. 8. Repeat steps 2 - 7 for each of the other alcohols. Variables and Constants My variable will be:- number of carbon atoms present in the alcohol being tested. My constants will be:- increase in temperature. volume of water to be ...
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In this experiment our aim is to find out if the number of carbon atoms or bonds affects the energy output of 4 different alcohols when they are ignited.
... these reactions through the following bond energy tables. The final kJ/mol readings should show weather the reaction is exothermic or endothermic. I will base my prediction on the results of these tables. Methanol CH3OH H | H - C - ...
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In this experiment, I plan to find out the difference in energy release between different sorts of alcohols.
... quickly in a tin as tin is a better conductor of heat. I have decided to use two fairly close distances from the flame. I will be taking results from the difference of five and ten centimetres as there are ...
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In this experiment, I plan to find out the difference in energy release between different sorts of alcohols. To do this I will test how much alcohol is required to increase the temperature of 100ml of water by 30 degrees Celsius.
... water in the least weight loss will be Butanol. This should be followed by Propanol, then Ethanol and finally, the alcohol that will grace us with most weight loss will be Methanol. This is also backed up by the secondary data ...
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In this investigation I am going to burn five different alcohols in order to heat up a beaker of 100ml3 water. The alcohols that I will be burning are methanol, ethanol, propanol, butanol and pentanol.
... the amount of water used to heat, the same sized copper calumeters and the same change in temperature of water. Equipment list: - five different alcohols in spirit lamps: methanol, ethanol, propanol, butanol and pentanol which are the variables I ...
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In this investigation I will be burning alcohol's to heat up a can of water. I will be burning four alcohols, methanol, ethanol, propanol and butanol.
... I conduct the experiments safely. As alcohols are very dangerous and highly flammable I will wear my safety goggles at all times. I will need to keep all lose items off clothing tucked in. the lids on the alcohol's must ...
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In this investigation I will be burning alcohol's to heat up a can of water. I will be burning seven alcohol's, ethanol, propanol, butanol, pentanol, hexanol, heptanol and octanol.
... I conduct the experiments safely. As alcohol's are very dangerous and highly flammable I will wear my safety goggles at all times. I will need to keep all lose items off clothing tucked in. the lids on the alcohol's must ...
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In this investigation I will be burning alcohols to heat up a beaker of water. I will be burning five alcohols,
... metal is produced. Ionic bonding involves electrons transferring from one atom to the other consequently leaving an electrostatic force between them. The other form of bonding is covalent where atoms share electrons to complete their outer orbit. An example being ...
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In this investigation I will be burning alcohols to heat up a beaker of water. I will be burning five alcohols, methanol, ethanol, propanol, butanol and pentanol.
... and has a reliable specific heat capacity of 4.2. The bond that are formed in an exothermic reaction can be of two types. The first could be ionic, where a metal is produced. Ionic bonding involves electrons transferring from one atom ...
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In this investigation I will be burning alcohols to heat up a beaker of water. I will be burning five alcohols, methanol, ethanol, propanol, butanol and pentanol. The aim is to find out how much energy is produced when burning these alcohols.
... and has a reliable specific heat capacity of 4.2. The bond that are formed in an exothermic reaction can be of two types. The first could be ionic, where a metal is produced. Ionic bonding involves electrons transferring from one atom ...
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In this report the effects of fire and explosion are examined based on quantitative analysis using calorimetric methods.
... of reactions between a combustible material (fuel) and oxygen, which may be from a variety of sources, most commonly air. During which heat and light are generated. Other products from a fire include solids and gases or vapors. Flames result ...
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Investigate and compare the amount of energy released during the combustion of alcohols with practical and theoretical combustions.
... burnt into KJ/mol. This was done using the following formula: Amount of energy given off [Energy] ___________________________________ x number of grams per mol Amount Burned (g) I was given the following bond values as below: Bonds Value of Bonds (KJ/Mol) C-H 412 O=O 496 C=O 743 O-H 463 C-O 360 C-C 348 Results Ethanol C2H5OH + 3O2 2CO2 + 3H2O H ...
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Investigate how economical different types of fuel are.
... fuel from it (as this would change the weight), and then fill the copper tin with 70 ml of water. We will then place the burner back underneath the tin ensuring that the tin is a height of 3cm away ...
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Investigate the amount of energy liberated when different alcohols are burnt.
... be of two types, ionic and covalent. Ionic- the transfer of electrons from one atom to another. These are metals. Covalent- the sharing of electrons between atoms, completing it's outer shell. These are non-metals. An example is methane where four ...
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Investigate the amount of energy released when different fuels burn
... also need to ensure that I conduct the experiments safely. As alcohol's are very dangerous and highly flammable I will wear my safety goggles at all times. I will need to keep all lose items off clothing tucked in. the ...
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Investigate the amount of energy released when different fuels burn.
... also need to ensure that I conduct the experiments safely. As alcohol's are very dangerous and highly flammable I will wear my safety goggles at all times. I will need to keep all lose items off clothing tucked in. the ...
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Investigate the amount of energy released when different fuels burn.
... also need to ensure that I conduct the experiments safely. As alcohol's are very dangerous and highly flammable I will wear my safety goggles at all times. I will need to keep all lose items off clothing tucked in. the ...
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Investigate the amount of heat released in the burning of fuels: ethanol (C2H5OH), propanol (C3H7OH) and butanol (C4H9OH).
... by 1°C. Water has been chosen because it is safe, readily available, and has a reliable specific heat capacity of 4.2Kj The reaction that is involved in burning alcohols is exothermic because heat is given out. For this reason the reactant ...
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Investigate the different amounts of energy given off when different alcohols are combusted. I will be using the alcohols of methanol, ethanol, propanol, butanol and pentanol.
... copper can for this experiment 4. Stopwatch 5. 100cm3 measuring cylinder 6. Electric balance 7. Heat mat and safety goggles Diagram: Method: I set up the apparatus as show in the diagram * I measured out 100cm3 of water with a measuring cylinder and poured this into the ...
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Investigate the enthalpy change of different alcohol
... possible 1 Propan-1-ol / half filled the spirit burner * Butan-1-ol / half filled the spirit burner * Butan-2-ol / half filled the spirit burne * Cyclohexanol / half filled the spirit burner * ***-I will find out in preliminary test *-Half filled the spirit burner because alcohol should be away from the flame, they ...
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Investigate whether ethanol, paraffin or natural gas is the best fuel.
... needed by using a measuring cylinder, and then pour the water into a beaker. * Place the beaker on to a clamp. * Place one out of the three fuels below the beaker at a measurement of 11/2 cm. * Take readings every ...