Question

Explain why some substances dissolve in water and others do not. A complete answer will include an explanation of electrostatic attractions and their relationship to energy.

Answer 1

solution. In wäler oxygen is more electronegative as compared to Hydrogen Hence partial negativels) ir developed on o-atam & partial positive charge (&) is developed on Platon, hence H.O is a polar molecule. so by like dissolve like rule water dissolves pelas molecules lonic substanas etc # water because of its high dielectric constant-90.38) has the ability to dissolve most of the inorganic Cionic) compounds, and hence is regarded as Universof SOLVENT. #whereas, the ionic compounds are soluble due to jou-dipole interaction, covalent compounds such as alcohes amines, glucose, Urea, sugar etc. dissolve in wales, due to the tendency of these molecules to from hegelrogen bonds with iou-dipole lucose, urea, islecules to f -708- water, St He Hot HS+ nolecule $_Hot Horos This is the solration process of Mach in water (HO) The potential energy of an ion-dipole interaction is given by E = 17 lue me or EL 2 2 = charge on the son 2 8-distance to the cou & the u= dipole moment of H20. they are more sensitive. 4082Eo I on-dipole in feraction are similar to ion-ion intration, except that