Responding variable : Heat of combustion Fixed variables : Volume of water‚ copper can‚ thermometer [ K1PP1(ii) - Able to write the hypothesis or variables correctly] Materials ethanol‚ propanol‚ butanol‚ water Apparatus Copper can‚ tripod stand‚ thermometer‚ 100 cm3 measuring cylinder‚ spirit lamp‚ weighing balance‚ wooden block‚ wind shield [ K1PP1(iii) - Able to list all the materials and apparatus
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Alkanols Heat of Combustion Aim: To determine the molar heat of combustion of methanol‚ ethanol and 1-propanol Materials: 3 spirit burners‚ one containing methanol‚ one containing ethanol and one containing 1-propanol. A thermometer A copper calorimeter 100 ml measuring cylinder Retort stand and clamps Stopwatch Matches Electronic balance Safety assessment: This experiment contains flammable materials remove loose clothing such as ties which could be set alight
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The extraction of Bio-ethanol from banana and apple peelings through the process of Fermentation and Distillation Purpose & Hypothesis The main purpose of the experiment was to observe if the common household wastes apple and banana peelings- were suitable to be used as another source for production of bio-ethanol It was hypothesized that the banana peelings would produce more bio-ethanol than the apple peelings due to its greater amount of sugar Ethanol‚ which is also known as ethyl alcohol
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depressant(sedative)- it slows down the body’s functions and its effects are similar to those of a general painkillings. Ethyl alcohol (ethanol) is the active ingredient in all alcoholic drinks. Ether is an anesthetic that works on the brain and puts it to sleep. The same symptoms operating patient experiences under ether are those experienced by a person drinking alcohol.intro Ethanol is commercially produced using a process called fermentation. Many other alcohols can be made this way‚ but are more likely
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Treating starch How is starch and cellulose treated to allow them to be used by the yeast? (1)Starch is a complex carbohydrate that is insoluble in water. It is supplied by traditional staple foods such as cereals‚ roots and tubers. Starch is used in cooking for thickening foods such as sauce. In industry‚ it is used in the manufacturing of paper‚ textiles and as a mould in the manufacture of sweets such as wine gums and jelly beans. Fermentation (2)As with any food preparation‚ there are
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Extraction of Ethanol” from Jackfruit Pulp (Artocarpus heterophyllus) as an alternative source of ethanol. Statement of the Problem Generally‚ this study aims to determine if jackfruit pulp (Artocarpus heterophyllus) can be a source of ethanol. Specifically‚ this study aims to answer the following questions: 1. Is there a significant relationship between the percent yield of ethanol and the different lengths of fermentation of the jackfruit pulp (Artocarpus heterophyllus)? 2. Is there a significant
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A THEORITICAL STUDY ON REMOVAL AND RECOVERY OF VOLATILE ORGANIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY PERVAPORATION JAGADEESH KUMAR. Y *a‚ NAGA KUMAR. Vb. *a III/IV B.Tech chemical engineering‚ R.V.R & J.C College of engineering‚ GUNTUR. E-mail: abhi.chemico@gmail.com. bIII/IV B.Tech chemical engineering‚ R.V.R & J.C College of engineering‚ GUNTUR. E-mail: naga.vootla@gmail.com. ABSTRACT Strategies for
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the absorbance of the liquids with the different solvents. Solvent Results from colorimeter 0.001 Acid (Hydrochloric) 0.358 Ethanol 0.132 Hot water 0.984 Cold water-distilled water (control) 0.057 CONLUSION: The results show that hot water gave the highest average absorbance reading from the colorimeter‚ followed by hydrochloric acid‚ ethanol and cold water‚ in descending order of absorbance. The absorbance of the solvent that was hot water affected the most the permeability
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Experiment 1: Bromination of Acetanilide1 Precautions: Ethanol is flammable Sodium hypochlorite is an oxidizing agent and releases toxic fumes (handle in fume hood) Acetic acid is corrosive‚ harmful if inhaled‚ flammable and can cause burns (handle in fume hood) Gloves are recommended to avoid chemical contact with skin Reaction Scheme: Conversion of acetanilide to p-bromoacetanilide Procedure: To a 125 mL Erlenmeyer flask containing a mixture of 95% ethanol (6 mL) and acetic acid (5 mL)‚ dissolve acetanilide
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other page Analysis: b) i) Ethanol – q=(100g)(4.18J/g/C)(25.5C) q=10659J Propanol – q=(100g)(4.18J/g/C)(21.5C) q=8987J Butanol – q=(100g)(4.18J/g/C)(23.5C) q=9823J ii) Ethanol – 10659J/0.985g= 10.8kJ/g Propanol – 8987J/0.845g= 10.6kJ/g Butanol – 9823J/0.75g = 13.1 kJ/g iii) Ethanol – n=0.985g/46.01g/mol = 0.0214 mol Propanol – n=0.845g/60.01g/mol = 0.0141 mol Butanol – n=0.75g/74.1g/mol = 0.0101 mol iv) Propanol – 8987J/0.0141 mol = 637kJ/mol Ethanol – 10659J/0.0214 mol = 498kJ/mol
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