Chemistry of the Elements |
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Page 43
... 1 - AH ~ 720 kJ mol H * ( g ) H3O + ( aq ) ; -AH ~ 1090 kJ mol - 1 ~ 1 It follows that the heat of solution of the oxonium ion in water is 370 kJ mol intermediate between the values calculated for Na + ( 405 kJ mol1 ) and K ( 325 kJ ...
... 1 - AH ~ 720 kJ mol H * ( g ) H3O + ( aq ) ; -AH ~ 1090 kJ mol - 1 ~ 1 It follows that the heat of solution of the oxonium ion in water is 370 kJ mol intermediate between the values calculated for Na + ( 405 kJ mol1 ) and K ( 325 kJ ...
Page 68
... kJ mol 298 . A H ... B AH 298 / kJ mol 1 HSH ... SH2 7 NCH NCH HẠNH ... NH , 1 17 16 МОН ... ОНМе 19 A H ... B ΔΗ 298 1 kJ mol HOH ... OH 2 22 FH ... FH 29 A HB ΔΗ 298 kJ mol 1 CIH ... OME2 30 HOH ... CI 55 A HB HCONH , ... OCHNH , HCOOH.
... kJ mol 298 . A H ... B AH 298 / kJ mol 1 HSH ... SH2 7 NCH NCH HẠNH ... NH , 1 17 16 МОН ... ОНМе 19 A H ... B ΔΗ 298 1 kJ mol HOH ... OH 2 22 FH ... FH 29 A HB ΔΗ 298 kJ mol 1 CIH ... OME2 30 HOH ... CI 55 A HB HCONH , ... OCHNH , HCOOH.
Page 124
... kJ mol1 for Mg , and 4910 kJ mol - 1 for Ca ; even for Ra the estimated value of 3281 kJ mol - 1 involves far more energy than could be recovered by additional bonding even if this were predominantly covalent . Reasons for the absence ...
... kJ mol1 for Mg , and 4910 kJ mol - 1 for Ca ; even for Ra the estimated value of 3281 kJ mol - 1 involves far more energy than could be recovered by additional bonding even if this were predominantly covalent . Reasons for the absence ...
Contents
Origin of the Elements Isotopes and Atomic Weights | 1 |
Hydrogen | 38 |
CTEA | 44 |
Copyright | |
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3-centre 4-coordinate acid adducts alkali metals alkenes alkyl alloys ammonia anions aqueous solutions atomic weight beryllium boranes borides boron bridging carbides carbon carboranes catalyst cations chains Chem chemical chemistry cluster cm³ CO₂ colourless complexes compounds coordination covalent crystal structure crystalline density dimer distance electrolysis electron electronegativity elements energy example formation give graphite Grignard reagents groups H bonds H₂ H₂O halides halogens heat hydrated hydrides hydrogen hydrolysis industrial Inorg Inorganic ionic ionization isoelectronic isotopes JCS Chem kJ mol¹ lanthanoids lattice layer ligand liquid lithium million tonnes minerals molecular molecules N₂ nitrogen occurs octahedral orbitals organometallic organometallic chemistry oxidation oxoacids oxygen prepared properties proton reaction reactive reacts readily reagents reducing room temperature salts silicates Silicon similar SiO2 soluble solvent species stable stoichiometry synthesis Table tetrahedral thermal tonnes transition metals trigonal X-ray yields