#40. Boiling point of any substance is directly related to the strength of intermolecular forces of attraction between the molecules of substance.
In case of dimethyl ether (CH3-O-CH3) there is weak dispersion forces as intermolecular forces while in case of ethanol (CH3CH2OH) there is strong intermolecular H-bonding between the ethanol molecules , hence more energy is required to separate ethanol molecules to vapors.
Thus boiling point of ethanol is more than that of dimethyl ether due to stronger intermolecular forces of attraction in ethanol.
#41. Water is a polar solvent and universal rule of solubility is that , "like dissolves like " .
So a polar molecule will dissolve in water .
Compound (b) is polar due to presence of polar carbonyl(C=O) groups , while compound (a) is non-polar.
So compound (b) will be more soluble in water.
40. Predict from dimethyl ether or ethanol which has the higher boiling point. Explain. 41. Which...
40. Predict from dimethyl ether or ethanol which has the higher boiling point. Explain. (4 marks 41. Which of the following compounds would be more soluble in water? Explain. (4 marks) b. H3 CH3 hivo loto ܐ ܀ H3C H3C -CH 42. What is the type of reaction that takes place when the below aldehyde reacts with Benedict's solution? Draw the product. ON (4 marks) (5 marks) 35. Write the IUPAC name for the following compound.H.H CH3 с sino od...
CF2 24. (1 pt.) Ethanol has a higher boiling point than dimethyl ether. Which intermolecular force is primarily responsible for this difference? H&C CH₂ H₃COh Oh dimethyl ether ethanol b.p. -24 °C b.p. 78 °C 25. (1 pt.) Dibutyl ether has a higher boiling point than ethanol. Which intermolecular force is primarily responsible for this difference? HJC-CH2OH H CHECH2CHE " CH CH 2 CH CH 3 ethanol b.p. 78 °C dibutyl ether b.p. 141 °C
and explain why this is? 6.86. Ethanol, CH3 CH, OH (l), and dimethyl ether, CH3 OCH; (C), have the same compositional formula C2H60. By reference to forces between the molecules in samples of each, predict which has the higher boiling point.
SIMPLE DISTILLATION 5. Which compound has a higher boiling point, ethanol or dimethyl ether? Explain 6. What are azeotropic mixture? 7. In today's setup what is the position of the thermometer? 8. What are two ideal solvents that we can separate using simple distillation?
QUESTION 40 Treatment of methyleyelohexene with an ether solution of dibrane (13), followed by reaction with low prices what methylcyclohexane 1.2.diol 2.methyleyelohexanol 2-methyleyebbeanol QUESTION 41 Which of the following statements are true? 1. ethanol is more soluble in water than dimethyl ether 2. ethanol has a higher boiling point than dimethyl ether 3. ethanol has the same molecular weight as dimethyl ether only 1 only 1 and 2 only 1 and 3 1, 2 and 3 QUESTION 42 Z-2-Butene reacts...
Which compound in each palr nas the higher boing point a CH3CH2CH2CI or CHCH2CH2l b. 'CH3CH2CH2OH or HOCH2CH2OH c CH3CH2CH20H or CH3CH2CH2F 4. 'Explain the following observation. Dimethyl ether [(CH320) and ethanol (CH2CH2OH) are both water-soluble compounds. The boiling point of ethanol (78 C), however, is much higher than the boiling point of dimethyl ether (-24 °C) Dehydration of alcohol C forms two products of molecular formula C14H12 that are isomers, but they are not constitutional isomers. Draw the structures...
12 Ethanol and dimethyl ether both have the same molecular formula, C2H60. However, the boiling point of ethanol is much higher (78°C) than that of dimethyl ether (-25°C). What could be the explanation for this difference?
Describe the classification of alcohols; describe the boiling points and solubility of alcohols, phenols, and ethers. Classify each of the following alcohols as primary (1 degree), secondary (2 degree) or tertiary (3 degree); Classify each of the following alcohols as primary (1 degree)j, secondary (2 degree), or tertiary (3 degree): Predict the compound with the higher boiling point in each of the following pairs: a. ethane or methanol b. diethyl ether or 1-butanol c. 1-butanol or pentane Predict the compound...
25. A) Which of the following compounds is likely to have the highest boiling point? D) H2 H2 H3C HO E) CH3 B) :он Нас H3C CH CH3 CH3 H2 H2 он H3C
2) Which of the following compounds has the higher boiling point: butane, butanol, butanoic acid, and methyl ethanoate? Briefly explain why. Batanoic acold Because of molecula weight and long a strong hydrogen bonding 3) From the compounds of previous question, which is more soluble in water? Briefly explain why. 4) Give the name of the carboxylic acid and alcohol used to prepare the ester methyl benzoate - Esterification 5) Write the reaction of acid hydrolysis between methyl ethanoate and water.