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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DETAILED LESSON PLAN IN ADVANCED CHEMISTRY IV- Euler LEARNING OBJECTIVES At the end of the lesson‚ students are expected to: Write the IUPAC name of certain alcohol compounds; SUBJECT MATTER Topic: Nomenclature of Carboxylic Acid References: General‚ Organic and Biochemistry by Denniston‚ Topping and Caret. Page 283-289. Fundamentals of General‚ Organic and Biochemistry by John R. Holum. Page 418-425. Materials: Ball and stick model of compounds Overhead projector Textbooks Pictures of certain
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Introduction • The problem we are studying was to determine the cellular damage of various concentrations of propanol‚ ethanol‚ methanol‚ NaCL‚ and sodium dodecyl sulfate henceforth known as SDS on Beta vulgaris to ultimately distinguish the ability of each solution to permeate the membrane of the Beta vulgaris. • Beta vulgaris contains a beta cyanin which is a water-soluble red-pigment‚ which remains in a healthy vacuole surrounded by the tonoplast membrane. When we damage the tonoplast membrane
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tertiary (3° ). If the OH is bonded to only one other carbon‚ it is a primary alcohol (eg. 1-butanol); if bonded to two other carbons‚ it is a secondary alcohol (eg. 2-butanol); if bonded to three other carbons‚ it is a tertiary alcohol (eg. 2-methyl-2-propanol). Due to the placement of the hydroxyl functional group in each of the degrees of alcohol‚ the reactivity of each should be impacted. This means that all three alcohols should have a different level of reactivity. The hydrogen atom on the hydroxyl
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reaction between alcohols and carboxylic acids will produce esters. Apparatus: Stopper‚ dropper‚ test tube‚ stopwatch‚ water bath‚ measuring cylinder (10ml) Chemical Reagents: Ethanol‚ n-Butanol‚ 2-Butanol‚ Alcohol X‚ Lucas reagent‚ 2-methyl-2-propanol‚ Concentrated H₂SO₄‚ 0.04 M Na₂Cr₂O₇‚ Glacial acetic acid Procedure (a) Lucas
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product or products for each reaction: 1a‚ 1b‚ and 2. Every individual in the group was assigned either 1a (1-propanol) or 1b (2-pentanol)‚ and 2 (1‚4-dimethyl-3-pentanol). The purpose of this experiment was to understand and become familiar with the reaction mechanisms and be able to observe and compare the product or products for each of the reactions using 13C NMR and IR. The reaction of 1-propanol (1a) with NaBr/H2SO4 was 1-bromopropane‚ the reaction of 2-pentanol (1b) with NaBr/H2SO4 was 2-bromopentane
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from: http://www.stenutz.eu/chem/solv6.php?name=ethanol Webmaster Webmaster. (2013). Methylene Chloride. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=methylene+chloride Webmaster Webmaster. (2013). 1 - Propanol. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=1-propanol Webmaster Webmaster. (2013). Ethyl Acetate. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=ethyl+acetate Webmaster Webmaster. (2013). Hexane. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=hexane
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Experiment D: Separation of Alcohols by Fractional Distillation Pre-lab Properties: Propanol‚ butanol‚ methanol Purpose: To separate two alcohols by distillation and analyze results with GC. Do not plug mantle directly into electrical outlet‚ use controller! Use 40/60 mol percent propanol/butanol (no cyclohexane or toluene are used in this lab because they are more toxic) Set up fractional distillation Set heat at highest level to start‚ then turn back down to 60-80% when vapor starts up column
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Equipment * Electronic Balance ±0.01g * Measuring Cylinders ±1 mL * Aluminium Can * Cotton Wool * Theromometer ±0.5C * Retort Stand and Clamp * Spirit Burner containing alcohol sample * Alcohols (methanol‚ ethanol‚ 1-propanol‚ 1-butanol‚ 1-pentanol) Safety The alcohols are highly flammable. Always place the alcohol lamp on a tray to contain any accidental spillage of alcohol. Carefully use the cap of the alcohol lamp to smother its flame. Avoid skin contact with the
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In the the Chemical Enginneering Lab at CSULB there is a total reflux eight-stage glass binary distillation column at atmospheric pressure. The components that need to be separated are 1-propanol and 2-propanol. These two compounds are isomers with fairly close boiling points. They are separated based on their physical propertis. With the battch distillation might be almost impossible to do the sepapration. Capacity of the reboiler is 20 L. The
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