alanflores40
29.06.2019 •
Chemistry
Both stearic acid and sucrose are molecular solids, but one is polar and the other is non polar. compare the solubility of the two compounds in water and in hexane to determine which is which
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Ответ:
Explanation:
Polar molecule are soluble in polar solvents Non polar molecules are soluble in non polar solvents.Stearic acid is an organic acid composed of seventeen carbons with one carboxylic acid group in the end. Its chemical formula is
. The hydrophobic part is this chain is made up of 17 carbon atom and hydrophilic part is only of made up of carboxylic group due to which it won't get dissolve in water.Which means that stearic acid will get dissolve in non polar solvent that is hexane. Hence, stearic acid is non polar molecule.
Where as sucrose an organic molecule with molecular formula of
.Due to presence of polar hydroxyl(-OH) groups in molecule , molecule will get easily dissolve in polar solvent that is water. Since,the hydrophobic part in the molecules are covered by the hydrophilic part due to which it gets easily dissolve in water. Hence, the sucrose in polar molecule.
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