Aim: The aim of this experiment is to determine which fuel‚ out of Pentane‚ Propane-1-ol and Propane-2-ol would be the most appropriate to take on a camping trip to a national park where wood cannot be used to burn. Factors that need to be considered are: • Heat of combustion (flash point) • Heat of vaporisation (boiling point) • How long the fuel will last • Does the fuel heat up the water relatively quickly • Does the fuel combust completely Hypothesis: If the tests are all successful‚ Pentane
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OF THE MOLECULES INVOLVED METHANOL ETHANOL PROPANOL BUTANOL PENTANOL HEXANOL HEPTANOL OCTANOL CARBON DIOXIDE WATER BALANCED EQUATIONS If we work in the bond energies into these balanced equations‚ and we subtract the energy taken in by the breaking of the bonds from the energy given out by the formation of new bonds we will get the total energy released. METHANOL 2CH3OH + 3O2(r) 2C02 + 4H20 ETHANOL 2C2H5OH + 6O2(r) 4C02 + 6H20 PROPANOL 2C3H5OH + 9O2(r) 6C02 + 8H20 BUTANOL 2C4H7OH
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Spirit Burner Experiment Aim: To perform an experiment in the labs to determine the heats of combustion of selected alcohols and then to use this information and the gathered data from chemical data sources to determine trends in the longer chain alcohols. The Variables that MUST be controlled throughout the experiment are: • The height from spirit burner nozzle to the base of the water filled beaker • Air drafts around the room must be kept to minimum so as to keep the heat on the base of the
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The tests with Ethanol being combined with 1-Propanol produced the results that were expected with only slight increase in heat produced. It was the combination of Methanol and 1-Propanol which produced results that were different from the theoretical result. When Methanol was only 25% of the total weight the heat produced was slightly greater than the expected result
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Chemical Reactions Lab Report Introduction: Chemical reactions is a process that involves rearrangement of the molecular or ionic structure of a substance. There are different types of reaction such synthesis‚ decomposition‚ single replacement‚ double replacement‚ and combustion. Synthesis is where two or more reactants combine to create a product. For Decomposition‚ it is the opposite where a product breaks down into reactants. In Single Replacement‚ reactants switches an element with another element
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break the bond. 3. An experiment was carried out to measure the heat of combustion of a fuel‚ 1-propanol. The student found that when 1.0g of 1-propanol had been used up‚ the temperature of the water had risen by 15oC. He knew the specific heat capacity of water and was able to calculate the amount of heat absorbed by 200g of water. Calculate the amount of heat released by the combustion of 1-propanol. 4. Calculate the heat of combustion per mole. 5. Calculate the heat released per gram for
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OBJECTIVE: * To determine the molecular weight of a volatile liquid by using Dumas method. METHOD: MATERIAL | CHEMICALS | 125 mL Erlenmeyer flask | Known liquid (2-propanol) | Rubber band | Unknown liquid | Boiling chips | | Watch glass | | 100 mL graduated cylinder | | Pin | | 600 mL beaker | | Hot plate | | Thermometer | | Room temperature water | | 6 × 6 and 8 × 8 aluminium foil | | PROCEDURE: SAFETY * Lab Coat and Safety Goggles. * Keep the bottles
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THE MOLECULES INVOLVED METHANOL ETHANOL PROPANOL BUTANOL PENTANOL HEXANOL HEPTANOL OCTANOL CARBON DIOXIDE WATER BALANCED EQUATIONS If we work in the bond energies into these balanced equations‚ and we subtract the energy taken in by the breaking of the bonds from the energy given out by the formation of new bonds we will get the total energy released. METHANOL 2CH3OH + 3O2(r) 2C02 + 4H20 ETHANOL 2C2H5OH + 6O2(r) 4C02 + 6H20 PROPANOL 2C3H5OH + 9O2(r) 6C02 + 8H20 BUTANOL 2C4H7OH
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In this experiment Methyl salicylates are prepared along with ethyl and 2-propyl salicylates in which the reaction proceeds with salicylic acid as the starting material along with the other reactants such as methanol‚ ethanol and 2-propanol. More specifically‚ sulfuric acid is employed as the suitable acid catalyst. FIGURE 2: Formation of methyl salicylate from salicylic acid. 2. CALCULATION: PERCENTAGE YIELD OF THE
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This usually means the cell is dead. In this experiment‚ you will test the effect of three different alcohols (methanol‚ ethanol‚ and 1-propanol) on membranes. Ethanol is found in alcoholic beverages. Methanol‚ sometimes referred to as wood alcohol‚ can cause blindness and death. Propanol is fatal if consumed.
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