The standard molar enthalpies of reaction for the following reactions, RECl3·6H2O(s)+4Gly(s)+Im(s)+3NaClO4(s) = =[RE(Gly)4(Im)(H2O)](ClO4)3(s)+3NaCl(s)+5H2O(l), were determined by solution-reaction colorimetry. The standard molar enthalpies of formation of the two complexes ...
Standard EnthalpyThe enthalpies of solution of sodium metavanadate dihydrate in aqueous solutions of sodium perchlorate at ionic strength I = 0.3, 0.5, and 0 mol/L were calorimetrically measured at 298.15 K. The resulting experimental data were used to calculate the standard enthalpy of formation ...
The standard free energy and enthalpy of formation of the ScOOH, CrOOH and YOOH phases have been estimated from the reported hydrothermal phase diagrams for the M 2O 3-H 2O (M ≡ Sc, Cr and Y) systems, where the equilibrium dehydration reactions are M( OH) 3 → MOOH → M 2 O 3...
表4 确定配合物 Zn(Phe)(NO3)2 H2O(s)标准摩尔生成焓的反应总汇 · Table 4 Reaction scheme used to determine the standard molar enthalpy of formation of Zn(Phe)(NO3)2 H2O(s) · No. 1 2 3 4 5 6 7 8 9 Reactions {ZnSO4 7H2O(s)+2NaNO3(s)+L鄄Phe(s)}+ S” ·“ =Solution A ...
ChineseJournalofChemistry,2006,24,l87一l92 Low-temperatureHeatCapacityandStandardMolarEnthalpy ofFormationofPotassiumL-ThreonateHydrateK(C4HTOs)·H20 WEI,Qing。(魏青) CHEN,San-Ping。(陈三平) GAO,Sheng-Li。(高胜利) DI,You-Ying(邸友莹) TAN,Zhi.cheng气谭志诚) SHI,Qi-Zhen。(史启祯) DepartmentofChem...
The search for more reliable and precise thermodynamic standard functions: free formation enthalpy (ΔGf∘), formation enthalpy (ΔHf∘), entropy (S∘) and specific heat (Cp∘), than those selected by Pourbaix in 1963 in his capital atlas [1], may modify significantly E-pH diagrams ...
In such an approach, the interaction enthalpy is accurately estimated between the energies of a supermolecular complex and its fragments32. Figure 8c and d shows theoretical Raman spectra for H2O and MSA⋅(H2O)n as well as 2H2O and (MSA)2.(H2O)n where n=1−5. The isolated MSA has...
Phase Equilibrium of the Ternary System Cadmium Chloride + l-Threonine + Water at 298.15 K and Standard Molar Enthalpy of Formation of Cd(C4H9NO3)Cl2·H2O The equilibrium solubility of the ternary system cadmium chloride + l-threonine + water was determined at 298.15 K, and the corresponding eq...
measurements of suitable concentration cells in the temperature range 40–70 °C. The results are interpreted in terms of a quasi-lattice model of aqueous melts. Standard enthalpy changes for complex formation are calculated and compared with data obtained in sodium nitrate melts....
A comparison of the estimated and experimentally obtained values of the enthalpy of formation for NaH2PO4⋅2H2O and K2HPO4⋅3H2О shows they are within the limits of the error of determination.Similar content being viewed by others The Influence of Cation Substitution on the Kinetics of Phase...