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How much energy will be released when a sodium ion and a chloride ion, originally at infinite distance are brought together to a distance of2. 76 Å ( the shortest distance fo approach in a sodium chloride crystal ? Assume that the ions act as point charges , each with a mangitude of1. 60 xx 10^(-19) C ( the electronic charge ) Also if lattice enrgy of Nacl is185kcal , how the lower value obtained per mole by above calculation can be explained ? |
| Answer» SOLUTION :119.595 KCAL , | |