Answer :
The order of water solubility for the organic compounds you listed is:
CH3COOCH3 (ethyl acetate) - this compound is moderately water soluble
CH2=CH2CH3 (ethylene) - this compound is slightly soluble in water
CH3CH2COOH (ethanoic acid) - this compound is highly soluble in water
The solubility of a compound in water depends on its molecular structure and the intermolecular forces that exist between the compound and the solvent (in this case water).
In general, compounds with polar groups such as carboxyl groups (COOH) can form hydrogen bonds with water molecules, making them more water soluble.
Non-polar compounds, on the other hand, cannot form hydrogen bonds with water molecules and are instead bound by weaker dispersion forces than hydrogen bonds, resulting in poor water solubility.
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