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Write acceptor number

hello everyone in a series of acid-base chemistry our today's sub-topic of lecture is donor number and acceptor number so before understanding donor number and accepted number we have to uh have some knowledge some basic knowledge about free energy of solvation okay when acids and bases uh they they are dissolved in some solvent then they get solvated and in that process some energy are released and they have some driving forces also which is known as their free energy of solvation so this free energy absolution is determined by the ah by the bound equation and that equation is also going to be discussed here first of all the acidity of a species in a solvent is largely influenced by the solvation of the ions in the solution definitely ah some acids or base will decompose so that decomposition will be will be favored by the uh by the role of the solvent okay as much polar the solvent is the more will be the power of dissociation into some h plus to produce some h plus ions or o h minus ions etcetera okay so there are seeds of acidity of this species as well as here this basicity can also be said okay so the acidity of the species in a solvent is largely influenced by the solvation of the ions in solution next the gibbs free energy that is minus delta z zero okay of solvation so some some species are dissolved so there must be some thermodynamic parameter which is the minus delta g zero so that will be a function of the radius of the ion that will be function of the charge of the ion pi and as well as the permittivity of the medium also okay so the parameters are r is the radius of the ion z is the charge of the ion okay epsilon r is the permittivity relative permittivity of the medium and this is expressed by the bond equation as i have said that bond equation is delta g 0 equal to minus this negative sign is here placed in the right hand side of the equation n z square n z square square by 8 pi epsilon 0 r into 1 minus 1 by epsilon r epsilon 0 is the permittivity of vacuum and n is the avogadro number ok so by the help of this equation the free energy of solution can be determined so it is clear it can be it is reflected from this equation that as much negative value of the delta g 0 there is more active solvation taking place that means solvation is favored by the negative delta g zero value uh of interaction of the solvent with the acids or bases and here some parameter z by z square by r uh it has a spatial terminology which is known as the electrostatic parameter sometimes it is denoted as psi in some books you will find that the equation...