The standard molar enthalpy at 298.15 K was determined by solution-reaction calorimetry for the reaction: NiCl 2(cr) + 6NH 4Cl(cr) = [Ni(NH 3) 6]Cl 2(cr) + 6HCl(g). From the standard molar enthalpy of reaction, the standard molar enthalpy of formation of [Ni(NH 3) 6]Cl 2(...
Finally,standard molar enthalpy of formation of ammonium hydrogen phthalate was determined to be ΔfHm [NH4(C8H5O4),s]=-(912. 最后,利用此反应焓和反应中其他物质的热力学数据计算出邻苯二甲酸氢铵的标准摩尔生成焓为:ΔfHm [NH4(C8H5O4),s]=-(912。 3. Finally, the standard molar enthalpy ...
℃, the chemical reaction andstandard enthalpy of formationwere measured by a solution calorimeter, and the solution reaction of [2Dy(NO_3)_3·6H_2O+2Glu+6NaClO_4·H_2O] and [Dy_2(Glu)_2(ClO_4)_4·9H_2O+6Na.300kJ/mol,计算得到配合物Dy2(Glu)2(ClO4)4·9H2O(s)在25℃时的...
Standard molar enthalpy of formation of hydrated sodium cupric arsenate [NaCuAsO4 center dot 1.5H(2)O(s)]A new compound (NaCuAsO4 center dot 1 center dot 5H(2)O) was synthesized, and its composition was determined by means of the methods of ignition loss-in-weight and chemical analysis....
The relative enthalpy of NaAlCl4 has been determined by drop calorimetry in the temperature interval 298 to 573 K to be: {H°(T)H°(298.15 K)}/J mol1 = 143.16(T/K)42804, (298 to 414K){H°(T)H°(298.15 K)}/J mol1 = 175.75(T/K)37285, (433 to 573K) The molar enthalpy ...
The standard enthalpy of formation of tetrapotassium pyrophosphate is -773.3 kcal mol-1; it was determined from the enthalpies of solution of K2HPO4, H2O, and K4P2O7 in 10 m HCl at 40°C and from the heat capacities of these compounds and the standard enthalpies of formation of K2HPO4...
氯化铵和硫酸铵生成焓与晶格能测定Determinationofstandardenthalpiesformationandlatticeenergiesammonium 系统标签: 氯化铵硫酸铵晶格ammoniumenthalpiessulfate 氯化铵和硫酸铵生成焓与晶格能测定 杨春 1,2 ,成文玉 1 ,王庆伦 2 ,刘晓莉 1 ,王桂香 1 ,杨津 1 (1.河北工业大学化工学院,天津 300130;2.南开大学化学...
更新1: If I want to find the standard enthalpy change of the calcium carbonate. 1. Heat released = m x c x ( temperature change). Is m represents mass of HCl? 2. standard enthalpy change = heat released / mol. Is mol represents the no. of moles of HCl?As follows: ...
Standard molar enthalpy of formation of Ca2[B4O7(OH)2] A pure calcium borate Ca 2[B 4O 7(OH) 2] has been synthesized under hydrothermal condition and characterized by XRD, FT-IR and TG as well as by chemical an... Z Liu,S Li,C Zuo - 《Thermochimica Acta》 被引量: 59发表: ...
0 mol ?L-1HCl and ethyl alcohd absolute, a new thermochemical cycle is designed to determine the standard enthalpy of formation for Cd(p-tol)2Cl2. 598kJ·mol1-,并计算出了配合物Cd(p-tol)2Cl2的标准生成焓。 3. A new thermochemical cycle has been designed to determine the standard entha...