Standard Enthalpies of Zinc and Copper Methanesulfonate Tetrahydrates FormationстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
Аннотация:Enthalpies of dissolution of zinc Zn(SO3CH3)2·4H2O and copper Сu(SO3CH3)2·4H2O methanesulfonate tetrahydrates in water were measured at 298.15 K by isoperibol solution calorimeter. Obtained values were recalculated to infinite dilution by Debay-Hukkel equations. There is a slight exothermic effect when the zinc salt dissolves ( kJ/mol), while the copper salt is dissolved endothermically ( kJ/mol). Standard enthalpies of salts formation at 298.15 K were calculated on the basis of the experimental and literature data of ions formation in aqueous solutions by Hess Law. Corresponding values of standard enthalpies of formation are equal kJ/mol and kJ/mol for Zn(SO3CH3)2·4H2O and Сu(SO3CH3)2·4H2O, respectively.