Electrochromic Shift of Chlorophyll Absorption in Photosystem I from
... Such a shift may in principle be introduced by a local protein reorganization that might accompany the electron transfer process, as suggested in Savikhin et al. (2001). Oxidationinduced structural changes were reported, for example, in Kim et al. (2001). Such perturbations in protein structure, how ...
... Such a shift may in principle be introduced by a local protein reorganization that might accompany the electron transfer process, as suggested in Savikhin et al. (2001). Oxidationinduced structural changes were reported, for example, in Kim et al. (2001). Such perturbations in protein structure, how ...
Protonation patterns in reduced and oxidized forms of electron
... treated explicitly. The great advantage of this implementation is that interactions with the water molecules and the ions in the solution are treated with atomistic details. Thus, significant contributions such as hydrogen bonding, salt bridge formation between ions and titratable residues as well a ...
... treated explicitly. The great advantage of this implementation is that interactions with the water molecules and the ions in the solution are treated with atomistic details. Thus, significant contributions such as hydrogen bonding, salt bridge formation between ions and titratable residues as well a ...
Electroless plating of rhenium-based alloys with nickel, cobalt and iron
... steady-state condition, electroless plating takes place on the growing film and is affected by its composition. Therefore, the influence of the substrate on the deposition process is most important for the initial stages of the film formation. This is confirmed by similar values of Emix determined for a ...
... steady-state condition, electroless plating takes place on the growing film and is affected by its composition. Therefore, the influence of the substrate on the deposition process is most important for the initial stages of the film formation. This is confirmed by similar values of Emix determined for a ...
English - SciELO Portugal
... industry to produce articles for decorative and functional purposes, such as dielectrics [1], printed circuit boards [2], insulating substrates [3, 4] and patterns of complex geometry [5]. Autocatalytic metal plating on polymer substrates is particularly interesting on flexible and transparent devic ...
... industry to produce articles for decorative and functional purposes, such as dielectrics [1], printed circuit boards [2], insulating substrates [3, 4] and patterns of complex geometry [5]. Autocatalytic metal plating on polymer substrates is particularly interesting on flexible and transparent devic ...
Tracing Water and Cation Diffusion in Hydrated Zeolites of Type Li
... increasing temperature.53−56 This may be easily referred to the fact that the activation energy for barrier permeation exceeds, in general, the activation energy for diffusion in the genuine pore network. Also in the present case, the genuine intracrystalline diffusivities Dmicro of both the lithium i ...
... increasing temperature.53−56 This may be easily referred to the fact that the activation energy for barrier permeation exceeds, in general, the activation energy for diffusion in the genuine pore network. Also in the present case, the genuine intracrystalline diffusivities Dmicro of both the lithium i ...
Challenge Problems
... was made by the German chemist Johann Wolfgang Döbereiner (1780–1849). In 1816, Döbereiner noticed that the then accepted atomic mass of strontium (50) was midway between the atomic masses of calcium (27.5) and barium (72.5). Note that the accepted atomic masses for these elements today are very dif ...
... was made by the German chemist Johann Wolfgang Döbereiner (1780–1849). In 1816, Döbereiner noticed that the then accepted atomic mass of strontium (50) was midway between the atomic masses of calcium (27.5) and barium (72.5). Note that the accepted atomic masses for these elements today are very dif ...
2014 HSC Chemistry Marking Guidelines
... Ethylene is then used as a starting material for several important plastics. The impact on society has been the development of the plastics industry from ethylene, which has usually been sourced from fossil fuels but its conversion from ethanol which can be sourced from biomass has introduced a rene ...
... Ethylene is then used as a starting material for several important plastics. The impact on society has been the development of the plastics industry from ethylene, which has usually been sourced from fossil fuels but its conversion from ethanol which can be sourced from biomass has introduced a rene ...
Organic Chemistry Curriculum Map - Belle Vernon Area School District
... position on the periodic table to its atomic number, ionization energy, electro-negativity, atomic size, and classification of elements. Anchor: CHEM.A.2.1 – Explain how atomic theory serves as the basis for the study of matter. Eligible Content CHEM.A.2.1.2 – Differentiate between the mass numbe ...
... position on the periodic table to its atomic number, ionization energy, electro-negativity, atomic size, and classification of elements. Anchor: CHEM.A.2.1 – Explain how atomic theory serves as the basis for the study of matter. Eligible Content CHEM.A.2.1.2 – Differentiate between the mass numbe ...
Balancing Chemical Reactions
... H3PO4 + (NH4)2MoO4 + HNO3 → (NH4)3PO4•12MoO3 + NH4NO3 + H2O Solution. We begin by balancing Mo, which shows up in one reactant and one product, placing a 12 before (NH4)2MoO4 H3PO4 + 12(NH4)2MoO4 + HNO3 → (NH4)3PO•12MoO3 + NH4NO3 + H2O Next, we balance the structural unit NH4 (actually the ammonium ...
... H3PO4 + (NH4)2MoO4 + HNO3 → (NH4)3PO4•12MoO3 + NH4NO3 + H2O Solution. We begin by balancing Mo, which shows up in one reactant and one product, placing a 12 before (NH4)2MoO4 H3PO4 + 12(NH4)2MoO4 + HNO3 → (NH4)3PO•12MoO3 + NH4NO3 + H2O Next, we balance the structural unit NH4 (actually the ammonium ...
Effect of the Electrical Double Layer on
... An analysis of transport of charged and uncharged species associated with a steady-state faradaic process at a spherical microelectrode is reported. We examine systems comprising various relative concentrations of a redox species and, if charged, its counterion and an inert electrolyte. Of particula ...
... An analysis of transport of charged and uncharged species associated with a steady-state faradaic process at a spherical microelectrode is reported. We examine systems comprising various relative concentrations of a redox species and, if charged, its counterion and an inert electrolyte. Of particula ...
Integrated Chemical Systems
... 1B). The line shape and gvalue (1.9682) in the dry film are very similar to those observed with an immobilized Ti(II1)-porphyrin (Ti(F)(TPP)) crystal: Ti(II1) in MgO,Io or Ti(II1) in C H 3 0 D at low temperature." The variation in the line shape and in the intensity with the state of solvation indic ...
... 1B). The line shape and gvalue (1.9682) in the dry film are very similar to those observed with an immobilized Ti(II1)-porphyrin (Ti(F)(TPP)) crystal: Ti(II1) in MgO,Io or Ti(II1) in C H 3 0 D at low temperature." The variation in the line shape and in the intensity with the state of solvation indic ...
Section 3.5 Ionic Compounds: Formulas and Names
... • Molecular compounds form between two nonmetals – The atoms in molecular compounds don’t form ions – they share electrons. For this reason the same combination of elements can form a number of different molecular compounds. ...
... • Molecular compounds form between two nonmetals – The atoms in molecular compounds don’t form ions – they share electrons. For this reason the same combination of elements can form a number of different molecular compounds. ...
Chemical Reactions and Solution Stoichiometry
... oxygen atoms are near the Na+ cations and the hydrogen atoms are near the Cl− anions. This is due to the polar nature of water, a result of uneven electron distribution in water molecules. ( Flashforward to Section 8.6 Molecular Polarity) Water is a neutral compound, but the electrons in the covale ...
... oxygen atoms are near the Na+ cations and the hydrogen atoms are near the Cl− anions. This is due to the polar nature of water, a result of uneven electron distribution in water molecules. ( Flashforward to Section 8.6 Molecular Polarity) Water is a neutral compound, but the electrons in the covale ...
class notes 4
... it won’t go. b. Acid-Base Reaction: An acid and a base are mixed and we get water and a salt, when the acid and base switch partners. Acid-base reactions always go. c. Gas-Evolution Reaction: Two aqueous solutions are mixed and one product is a gas. Must have gas formed or it won’t go. II. ...
... it won’t go. b. Acid-Base Reaction: An acid and a base are mixed and we get water and a salt, when the acid and base switch partners. Acid-base reactions always go. c. Gas-Evolution Reaction: Two aqueous solutions are mixed and one product is a gas. Must have gas formed or it won’t go. II. ...
Thermochemistry Exam Review Questions
... B. Cl- ions are repelled by the hydrogen atoms of the water molecules C. Na+ ions are attracted to the oxygen atoms of the water molecules D. Na+ ions are repelled by the oxygen atoms of the water molecules 13 Which of the following would produce a precipitate when equal volumes of 0.5 mol/L of aqu ...
... B. Cl- ions are repelled by the hydrogen atoms of the water molecules C. Na+ ions are attracted to the oxygen atoms of the water molecules D. Na+ ions are repelled by the oxygen atoms of the water molecules 13 Which of the following would produce a precipitate when equal volumes of 0.5 mol/L of aqu ...
General Concepts of Chemical Equilibrium
... A+B DC+D If 0.2 mol of A is mixed with 0.5 mol of B in 1.0 L, find the equilibrium concentrations of A, B, C, and D. The equilibrium constant of the reaction is 4.0x108. It is clear that we have a high equilibrium constant which suggests that very little reactants may have been left and thus we buil ...
... A+B DC+D If 0.2 mol of A is mixed with 0.5 mol of B in 1.0 L, find the equilibrium concentrations of A, B, C, and D. The equilibrium constant of the reaction is 4.0x108. It is clear that we have a high equilibrium constant which suggests that very little reactants may have been left and thus we buil ...
CHAPTER 15 ACIDS AND BASES
... At pH 1.00 the concentration of hydrogen ion is 0.10 M ([H ] = 10 ). The extra hydrogen ions will tend to suppress the ionization of the weak acid (LeChâtelier's principle, Section 14.5 of the text). The position of equilibrium is shifted in the direction of the un-ionized acid. Let's set up a table ...
... At pH 1.00 the concentration of hydrogen ion is 0.10 M ([H ] = 10 ). The extra hydrogen ions will tend to suppress the ionization of the weak acid (LeChâtelier's principle, Section 14.5 of the text). The position of equilibrium is shifted in the direction of the un-ionized acid. Let's set up a table ...
Carboxylic Acids: Properties and Synthesis
... Let’s now compare the acidities of two aliphatic carboxylic acids: O ...
... Let’s now compare the acidities of two aliphatic carboxylic acids: O ...
Exam 2
... Draw structural formulas for the following compounds. Give the molecular formula of each (CxHy.....). a) 2-methyl-3-hexene ...
... Draw structural formulas for the following compounds. Give the molecular formula of each (CxHy.....). a) 2-methyl-3-hexene ...
Hydrated Sodium Calcium Aluminum Magnesium Silicate Hydroxide
... Mechanism of polymerization catalysis ...
... Mechanism of polymerization catalysis ...
General Chemistry - Bioinorganic and Solution Chemistry Group
... methods of chemical laboratory work to students of biology and pharmaceutical sciences and to make them familiar with the important reaction types in inorganic chemistry. Restrictions concerning the availability of instrumentation, laboratory space, personnel and time call for a certain degree of fl ...
... methods of chemical laboratory work to students of biology and pharmaceutical sciences and to make them familiar with the important reaction types in inorganic chemistry. Restrictions concerning the availability of instrumentation, laboratory space, personnel and time call for a certain degree of fl ...
Chapter 4-5
... • May not represent ionic charges. • Oxidation numbers can be calculated. • By comparing the oxidation number of a species before and after a reaction we can tell that whether a species has gained or lost electrons (reduced or oxidized). ...
... • May not represent ionic charges. • Oxidation numbers can be calculated. • By comparing the oxidation number of a species before and after a reaction we can tell that whether a species has gained or lost electrons (reduced or oxidized). ...
Integrated Physics and Chemistry
... Explain why atoms sometimes join to form bonds; Explain why some IPC.7D, E; IPC.9B atoms transfer their valence electrons to form ionic bonds, while other atoms share valence electrons to form covalent bonds; Differentiate between ionic, covalent, and metallic bonds; Compare the properties of substa ...
... Explain why atoms sometimes join to form bonds; Explain why some IPC.7D, E; IPC.9B atoms transfer their valence electrons to form ionic bonds, while other atoms share valence electrons to form covalent bonds; Differentiate between ionic, covalent, and metallic bonds; Compare the properties of substa ...
Simultaneous Generation of Different Types of Ion Pairs upon
... of NPe upon S0-S1 excitation is very similar to that of the parent Pe, indicating an essentially zero CT character of the excited state. In polar solvents, on the other hand, the TA spectrum is broader and peaks between those of Pe•+ and Pe*, pointing to a substantial CT character of the excited sta ...
... of NPe upon S0-S1 excitation is very similar to that of the parent Pe, indicating an essentially zero CT character of the excited state. In polar solvents, on the other hand, the TA spectrum is broader and peaks between those of Pe•+ and Pe*, pointing to a substantial CT character of the excited sta ...