Explain why diethylether
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Organic Chemistry
- 1. Explain the following - why stearic acid has higher melting point than decanoic acid. - why benzoic acid has higher melting point than stearic acid. - why salicylic acid has higher melting point than benzoic acid. - why octane has a higher melting point than isooctane. - why 2,2,3,3-tetramethylbutane has the highest melting point among the three isomers of C8H18.arrow_forward1. Name the following alcohols and classify it as primary, secondary or tertiary.arrow_forward1,4-Pentadiene (CH2=CH-CH2-CH=CH2) is a liquid at room temperature and has a density of 0.66 g/mL and molar mass of 68.12 g/mol. In a laboratory experiment, 3.80 mL of this compound was treated with 4.80 mL of conc. H2SO4 (100% w/w; molar mass 98.08 g/mol). Note that the density of conc. H2SO4 is 1.84 g/mL. The resulting sulfate ester was then treated with 1.20 mL of water (molar mass 18.02 g/mol) affording, after work- up, 2,4-pentanediol (molar mass 104.15 g/mol) as the crude product. The crude product was then purified by simple distillation, which yielded 2.00 g of pure product. What is the theoretical yield of 2,4-pentanediol expressed in grams? Show calculations. What is the percentage yield of pure 2,4-pentanediol?arrow_forward
- 1,4-Pentadiene (CH2=CH-CH2-CH=CH2) is a liquid at room temperature and has a density of 0.66 g/mL and molar mass of 68.12 g/mol. In a laboratory experiment, 3.80 mL of this compound was treated with 4.80 mL of conc. H2SO4 (100% w/w; molar mass 98.08 g/mol). Note that the density of conc. H2SO4 is 1.84 g/mL. The resulting sulfate ester was then treated with 1.20 mL of water (molar mass 18.02 g/mol) affording, after work- up, 2,4-pentanediol (molar mass 104.15 g/mol) as the crude product. The crude product was then purified by simple distillation, which yielded 2.00 g of pure product. a. Provide a balanced chemical equation to show the reaction between 1,4-pentadiene and sulfuric acid. Do not use molecular formulas in the chemical equation except for sulfuric acid. b. What reactant is the limiting reagent in this chemical equation? Show calculations to support your answer.arrow_forwardMake a model of cyclohexane and draw its shape. Comment on its bond angles and how easily the model fitted together. Draw the boat and chair conformations of cyclohexane. Which arrangement do you think is the most stable?arrow_forwardComplete the organic reaction.arrow_forward
- The condensed structural formula of an organic compound is CH3-CH2-CHBr-CHCl-CHCl-CHO. What is the name and type of this organic compound? 3-bromo-4,5-dichloro hexanal; aldehyde 4-bromo-2,3-dichloro hexanal; aldehyde 4-bromo-2,3-dichloro hexan-1-one; ketone 3-bromo-4,5-dichloro hexan-1-one; ketonearrow_forwardDescribe a simple CHEMICAL test to distinguish between: Methanoic acid (HCO2H) and Ethanoic acid (CH3CO2H) Dimethyl ether (CH3OCH3) and Ethanol (CH3CH2OH)arrow_forwardOnly 1 of the following chemicals can exist. Which chemical is it and why can't the other chemicals exist? a) 1,1-dimethyl-1-ethyl-cyclohexan b) 2,2,3-methylbutan c) 5,5-dibromo-6-cyclopentanolarrow_forward
- Write the structure of the following compound: 2-(2-chlorophenyl)-1 -iodoethane.arrow_forwardWhen trans-2-chloro-1-cyclohexanol is treated with a base, cyclohexene oxide is the product. However, when cis-2-chloro-1-cyclohexanol is treated with a base, the product is cyclohexanone A.Write the equation for the reaction between trans-2-chloro-1-cyclohexanol and the base to yield the cyclohexene oxide B.Why doesn’t the cis isomer yield the oxide? C.Write the mechanism for each of the two reactions.arrow_forwardDraw the structure and name the product formed if the following alcohols are oxidized. Assume that an excess of oxidising agent is used.(i) CH3CH2CH2CH2OH(ii) 2-butanol(iii) 2-methyl-l-propanolarrow_forward
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