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Assignment On Organic Chemistry - CHEM2120U

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Ontario Tech University

   

Organic Chemistry (CHEM2120U)

   

Added on  2020-03-04

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In the CHEM2120U Assignment, we will discuss Organic Chemistry. The boiling point of Hexanal is 126.9oC while the boiling point of 1-heptanol is 178.50C. 1-heptanol has a higher boiling point than hexanal. The difference in the boiling points can be explained in terms of the molecular structures of the two compounds and the nature of the Intermolecular Forces of Attraction Between the Molecules.

Assignment On Organic Chemistry - CHEM2120U

   

Ontario Tech University

   

Organic Chemistry (CHEM2120U)

   Added on 2020-03-04

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Running head: ORGANIC CHEMISTRY1Organic ChemistryProfessor’s Name:Name:Date:
Assignment On Organic Chemistry - CHEM2120U_1
ORGANIC CHEMISTRY2The boiling point of Hexanal is 126.9 oC while the boiling point of 1-heptanol is 178.5 0C(Haynes, 2014). 1-heptanol has a higher boiling point than hexanal. The difference in the boiling points can be explained in terms of the molecular structures of the two compounds and the natureof the intermolecular forces of attraction between the molecules.The molecular formula of Hexanal is C6H12O and its molecular mass is 100.16 g/mol (Haynes, 2014). The molecular formula of 1-heptanol is C7H16O and its molecular mass is 116.20 g/mol. The structures are as shown below.Hexanal1-HeptanolThe boiling points of organic compounds increase with the increase in the molecular weights. 1-Heptanol has one carbon more than hexanal hence is expected to have a slightly higher boiling point. Since the molecular masses of the two compounds are comparable, it is expected that their boiling points are almost similar. However, this is not the case as 1-Heptanol has a much higher boiling point (178.5 oC) compared to hexanal (126.9 oC). The difference is attributed to the nature of the intermolecular forces of the molecules.In 1-Heptanol, the oxygen atom is directly bonded to a hydrogen atom. Since oxygen is highly electronegative, the O-H bond is very polar; with the oxygen end acquiring a partial negative charge and the H end being partially positive. The oxygen atom of one molecule attractsthe Hydrogen molecule of a neighboring molecule leading to formation of Hydrogen bonding
Assignment On Organic Chemistry - CHEM2120U_2

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