Assignment On The Organic Chemistry.

Organic Chemistry 1
ESSENTIAL CHEMISTRY
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Organic Chemistry 2
1-hexanol is an organic compound which has the chemical formula C6H13OH (Gooch
2011). It is an alcohol which has the condensed structural formula CH3 (CH2)5OH (Gooch
2011). It is derived from hexane by substituting one of the hydrogen atoms with a hydroxyl
group (-OH). The structure of the alcohol is shown in the table below. The melting point of
ethanol ranges between -53 to -41 °C while the boiling point ranges between 155 to 159°C
(Gooch 2011). On the other hand, as an aldehyde, hexanal is a product of the termination
phase of the oxidation of fats (Hornback 2005). It is a straight-chain six-carbon compound
which has the following molecular formula, C6H12O (Hornback 2005). It corresponds to a
molecule of hexane whose one of the terminal methyl groups has been oxygenated by an
atom of oxygen forming an aldehyde (Hornback 2005). The structural formula of hexanal is
shown in the table below. Its boiling point is about 131 degree Celsius at standard
atmospheric pressure (Mackay, Shiu, Ma, & Lee 2006).
It is observed that, 1-hexanol has a higher boiling point compared to hexanal. The
molecular weight of an organic compound determines the melting and boiling points of the
compound. An organic compound with a higher molecular weight will have higher melting
and boiling points. The molecular weight of 1-hexanol is about 102.17 g/mol while that of
hexanal is approximately 100.16 g/mol (Mackay, Shiu, Ma, & Lee 2006). This explains why
the melting and boiling points of 1-hexanol are higher than those for hexanal.
Alcohol Structure Melting
point (°C)
Boiling
point (°C
) at 760
mm Hg
Molecular
Weight
(g/mol)
Functional
group
1-
hexanol
-44.6 157.0 102.17