k - Mrs Molchany`s Webpage
... for the change in free energy for the system is ΔG=ΔH-TΔS If T and P are constant then the sign of ΔG and spontaneity of a reaction are related. 1) If ΔG < 0, reaction proceeds forward 2) If ΔG = 0, reaction is at equilibrium 3) If ΔG > 0, the forward reaction is not spontaneous because work must be ...
... for the change in free energy for the system is ΔG=ΔH-TΔS If T and P are constant then the sign of ΔG and spontaneity of a reaction are related. 1) If ΔG < 0, reaction proceeds forward 2) If ΔG = 0, reaction is at equilibrium 3) If ΔG > 0, the forward reaction is not spontaneous because work must be ...
Electronic Structure of Metals The “Sea of Electrons”
... Hg @ -39°C) and hardness • Wide range of reactivity toward O2 Fe3O4 - magnetite- magnetic recording material Fe2O3 – rust (scales off – complete corrosion) Oxides of Cr, Co, and Ni- very hard, protective Coinage metals (Au, Ag, Pt, Pd) do not react readily with O2 (noble metals) ...
... Hg @ -39°C) and hardness • Wide range of reactivity toward O2 Fe3O4 - magnetite- magnetic recording material Fe2O3 – rust (scales off – complete corrosion) Oxides of Cr, Co, and Ni- very hard, protective Coinage metals (Au, Ag, Pt, Pd) do not react readily with O2 (noble metals) ...
Molecular forces
... After an atom has gained or lost electrons, it has a ___________ and is called an _________. A positive ion is called a ___________ and a negative ion is called an ___________. ...
... After an atom has gained or lost electrons, it has a ___________ and is called an _________. A positive ion is called a ___________ and a negative ion is called an ___________. ...
Title Thermodynamic Analysis of Polymer
... The theta temperature of a polymer solution is usually defined as the temperature at which the second virial coefficient vanishes. It can be also obtained by extrapolating the critical solution temperature of the solution to the limit of infinite polymer molecular weight. The two methods should lead ...
... The theta temperature of a polymer solution is usually defined as the temperature at which the second virial coefficient vanishes. It can be also obtained by extrapolating the critical solution temperature of the solution to the limit of infinite polymer molecular weight. The two methods should lead ...
158KB - NZQA
... When ammonia (partially) ionises in water, it produces hydroxide ions. (When hydroxide ions are in greater concentration than H3O+, the pH will be above 7 and therefore basic.) ...
... When ammonia (partially) ionises in water, it produces hydroxide ions. (When hydroxide ions are in greater concentration than H3O+, the pH will be above 7 and therefore basic.) ...
britannica article
... to follow up on his discovery, however. It remained for others to isolate orange crystals with the composition CoCl3 ∙ 6NH3, the correct formulation of which is recognized to be [Co(NH3)6]Cl3; this shows that the six ammonia molecules are associated with the cobalt(3+) ion and the positive charge is ...
... to follow up on his discovery, however. It remained for others to isolate orange crystals with the composition CoCl3 ∙ 6NH3, the correct formulation of which is recognized to be [Co(NH3)6]Cl3; this shows that the six ammonia molecules are associated with the cobalt(3+) ion and the positive charge is ...
Trace Metal Biogeochemistry 12.755
... However, there can be Non-Ideal effects (Morel and Hering 76-82): - The effects of other solutes on the free energy of ion(s) of interest - Solubility product and stability constants need to be corrected, or better, determined to/at the appropriate ionic strength. - The activity of the metal is: {Mn ...
... However, there can be Non-Ideal effects (Morel and Hering 76-82): - The effects of other solutes on the free energy of ion(s) of interest - Solubility product and stability constants need to be corrected, or better, determined to/at the appropriate ionic strength. - The activity of the metal is: {Mn ...
Valence bond theory (VBT)
... Predicted theoretical form spatial pyramid of four aspects (sp3) due to the fullness of the cover (d) with elictrons (d9), but proved to X-ray, this overlay is a four-level which makes it imperative to have a hybridization of the type (dsp2) and a solution to this problem suggested Pauling order e N ...
... Predicted theoretical form spatial pyramid of four aspects (sp3) due to the fullness of the cover (d) with elictrons (d9), but proved to X-ray, this overlay is a four-level which makes it imperative to have a hybridization of the type (dsp2) and a solution to this problem suggested Pauling order e N ...
Notes
... At 25 °C, the reaction I2(g) + Cl2((g) ' 2 ICl(g) has an equilibrium constant KP = 81.9. Initially a reaction mixture at this temperature contains PI2 = 0.100 atm, PCl2 = 0.100 atm and PICl = 0.100 atm. Calculate the equilibrium partial pressures of I2, Cl2, and ICl. ...
... At 25 °C, the reaction I2(g) + Cl2((g) ' 2 ICl(g) has an equilibrium constant KP = 81.9. Initially a reaction mixture at this temperature contains PI2 = 0.100 atm, PCl2 = 0.100 atm and PICl = 0.100 atm. Calculate the equilibrium partial pressures of I2, Cl2, and ICl. ...
C4C5C6
... makes it easy to see the end point of the titration. E.G phenolphthalein Universal indicator is made from a mixture of different indicators so each colour indicates a range of pH values. ...
... makes it easy to see the end point of the titration. E.G phenolphthalein Universal indicator is made from a mixture of different indicators so each colour indicates a range of pH values. ...
coordination compounds
... wThere are certain ligands which have two or more donor atoms but in forming complexes only one donor atom is attached to metal ion such ligands are called ambidentate ligands. ...
... wThere are certain ligands which have two or more donor atoms but in forming complexes only one donor atom is attached to metal ion such ligands are called ambidentate ligands. ...
Knowing Nernst: Non-Equilibrium Copper Redox
... us, copper(II) is the “normal” form of oxidized copper, but in situations where soft donors can compete with water, copper(I) might be the more stable form. A listing of hard and soft acids and bases is shown on the final page of this handout. Related to the HSAB concept is the change in reduction p ...
... us, copper(II) is the “normal” form of oxidized copper, but in situations where soft donors can compete with water, copper(I) might be the more stable form. A listing of hard and soft acids and bases is shown on the final page of this handout. Related to the HSAB concept is the change in reduction p ...
New Coordination Compounds of Copper(II) with
... Analysis of IR vibrational spectra: The spectra of the coordination compounds of copper(II) with guanidinopyrimidines are very complicated and the entire assignment of all the absorption bands is impossible. However, a careful study might lead to some important structural conclusions. The frequencie ...
... Analysis of IR vibrational spectra: The spectra of the coordination compounds of copper(II) with guanidinopyrimidines are very complicated and the entire assignment of all the absorption bands is impossible. However, a careful study might lead to some important structural conclusions. The frequencie ...
netionicnotes
... One mole of hydrogen ions react with one mole of hydroxide ions to produce one mole of water. Remember which acids are strong (and thus ionize completely) and those acids which are weak (should be written as a molecule). We can assume that all solutions are aqueous solutions, unless told otherwise. ...
... One mole of hydrogen ions react with one mole of hydroxide ions to produce one mole of water. Remember which acids are strong (and thus ionize completely) and those acids which are weak (should be written as a molecule). We can assume that all solutions are aqueous solutions, unless told otherwise. ...
Petsko, G.A., "Perparation of Isomorphous Heavy
... oxyens will compete with protein carboxylates for the heavy atom, and the phosphate complexes are often insoluble. Serine and Threonine. The hydroxyl groups of these side chains are fully protonated at all normal pH values and are not reactive nucleophiles. Occasionally, an abnormally reactive serin ...
... oxyens will compete with protein carboxylates for the heavy atom, and the phosphate complexes are often insoluble. Serine and Threonine. The hydroxyl groups of these side chains are fully protonated at all normal pH values and are not reactive nucleophiles. Occasionally, an abnormally reactive serin ...
Isomerism in Coordination Compounds
... [Mabcdef] is expected to give 15 geometric isomers. In the case of [Pt(NH3)BrClIpyNO2], several of these were isolated and characterised by Anna Gel'man and reported in 1956. Optical isomers are possible for each of these 15 forms, making a total of 30 isomers. The cis- isomer of MAA2b2 may also exh ...
... [Mabcdef] is expected to give 15 geometric isomers. In the case of [Pt(NH3)BrClIpyNO2], several of these were isolated and characterised by Anna Gel'man and reported in 1956. Optical isomers are possible for each of these 15 forms, making a total of 30 isomers. The cis- isomer of MAA2b2 may also exh ...
