Concept explainers
(a)
Interpretation:
The compound ethylene glycol is either dissolves in gasoline or not has to be predicted.
Concept introduction:
Like dissolves like principle: ‘Like dissolves like’ principle says that polar compounds including ionic compound should be more soluble in polar solvent. Likewise, non–polar compound should be more soluble in non–polar solvent.
Polar molecule: Polar molecules have large dipole moments.
Non-Polar molecules: Non-polar molecules have bonded atoms with similar electronegativity results to have zero dipole moments.
Solubility is the quantity of solute (solid, liquid or gas) that will dissolve in a given amount of solvent (solid, liquid or gas) at definite temperature and pressure. Solubility depends on the physical and chemical property of solvent, solute and concentration of the solution.
(b)
Interpretation:
The molecular iodine is either dissolves in Carbon tetrachloride or not has to be predicted.
Concept introduction: Refer part (a).
(c)
Interpretation:
Motor oil is either dissolves in Carbon tetrachloride or not has to be predicted.
Concept introduction: Refer part (a).
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Chemistry: The Molecular Science
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