Default Normal Template
... E.g: How many ml of 1 M HCl must be added to 50 ml of 0.5 M HCl to get a solution whose concentration is 0.6 M. no. of moles before mixing = no. of moles after mixing ( Y x1) + (50 x 0.5) = (Y + 50) x 0.6 ...
... E.g: How many ml of 1 M HCl must be added to 50 ml of 0.5 M HCl to get a solution whose concentration is 0.6 M. no. of moles before mixing = no. of moles after mixing ( Y x1) + (50 x 0.5) = (Y + 50) x 0.6 ...
File
... Pauli Exclusion Principle No 2 electrons in any one atom can have the same set of four quantum numbers • the maximum number of electrons in any orbital is 2 • 2 electrons occupying the same orbital must have opposite spin ...
... Pauli Exclusion Principle No 2 electrons in any one atom can have the same set of four quantum numbers • the maximum number of electrons in any orbital is 2 • 2 electrons occupying the same orbital must have opposite spin ...
Lecture 11 Notes
... Recall that the bond dipoles for molecules do not always cancel. When the bond dipoles do not cancel the resulting molecule is polar (it has a permanent dipole). ...
... Recall that the bond dipoles for molecules do not always cancel. When the bond dipoles do not cancel the resulting molecule is polar (it has a permanent dipole). ...
Chapter 5 Sec. 2 Sublevels and Orbitals NOTES
... At any given time, the electron in a hydrogen atom can occupy only one orbital. When the hydrogen atom is in the ground state, the electron occupies the 1s orbital. Depending on the ENERGY available the electron can move to the 2s orbital, to one of the three 2p orbitals, or to any other vacant orbi ...
... At any given time, the electron in a hydrogen atom can occupy only one orbital. When the hydrogen atom is in the ground state, the electron occupies the 1s orbital. Depending on the ENERGY available the electron can move to the 2s orbital, to one of the three 2p orbitals, or to any other vacant orbi ...
Press here to hemy 102 lab manual
... of heat. The energy change of a reaction that occurs at constant pressure is termed the heat of reaction or the enthalpy change. The symbol ΔH is used to denote the enthalpy change. If heat is evolved, the reaction is exothermic (ΔH 0); and if heat is absorbed, the reaction is endothermic (ΔH 0) ...
... of heat. The energy change of a reaction that occurs at constant pressure is termed the heat of reaction or the enthalpy change. The symbol ΔH is used to denote the enthalpy change. If heat is evolved, the reaction is exothermic (ΔH 0); and if heat is absorbed, the reaction is endothermic (ΔH 0) ...
Lecture 5 – Chemical Reactions
... Redox reactions is an abbreviation for oxidation/reduction reactions. B. Oxidation reactions originally described reactions involving combining oxygen with the various elements to form oxides. ...
... Redox reactions is an abbreviation for oxidation/reduction reactions. B. Oxidation reactions originally described reactions involving combining oxygen with the various elements to form oxides. ...
Creation of a low-entropy quantum gas of polar molecules in an
... is equivalent to only 9ER for K atoms. We find that the measured fGauss rises with increasing K atom number (blue points), and saturates around 80% for K numbers ≥1 × 105 . For this data, T /TF decreases with increasing K number (red points). The saturation of the lattice peak filling is consistent ...
... is equivalent to only 9ER for K atoms. We find that the measured fGauss rises with increasing K atom number (blue points), and saturates around 80% for K numbers ≥1 × 105 . For this data, T /TF decreases with increasing K number (red points). The saturation of the lattice peak filling is consistent ...
No Slide Title
... How many H atoms are in 72.5 g of C3H8O ? 1 mol C3H8O = (3 x 12) + (8 x 1) + 16 = ______ g C3H8O 1 mol C3H8O molecules = ___________ mol H atoms 1 mol H = ___________ atoms H 1 mol C3H8O 8 mol H atoms 6.022 x 1023 H atoms 72.5 g C3H8O x ...
... How many H atoms are in 72.5 g of C3H8O ? 1 mol C3H8O = (3 x 12) + (8 x 1) + 16 = ______ g C3H8O 1 mol C3H8O molecules = ___________ mol H atoms 1 mol H = ___________ atoms H 1 mol C3H8O 8 mol H atoms 6.022 x 1023 H atoms 72.5 g C3H8O x ...
76, 023605 (2007).
... array of phenomena in quantum condensed systems 关5兴. In particular, optical lattice systems may turn out to be the ideal tools for the analog simulation of various strongly correlated interacting lattice models 共e.g., Hubbard model 关2,3兴, Kitaev model 关6兴兲 studied in solid state physics. The great a ...
... array of phenomena in quantum condensed systems 关5兴. In particular, optical lattice systems may turn out to be the ideal tools for the analog simulation of various strongly correlated interacting lattice models 共e.g., Hubbard model 关2,3兴, Kitaev model 关6兴兲 studied in solid state physics. The great a ...
CHEMICAL REACTIONS
... e. Lewis acid (e- pr acceptor) and Lewis base (e- pr. donor) • e.g. boron trifluoride (e- deficient) and ammonia (lone pair on N) : BF3 + NH3 Æ BF3NH3 B. Decomposition/ Analysis Reactions 1. decomposition (not necessarily heated): a. hydrogen peroxide decomposes into water and oxygen. b. ammonium hy ...
... e. Lewis acid (e- pr acceptor) and Lewis base (e- pr. donor) • e.g. boron trifluoride (e- deficient) and ammonia (lone pair on N) : BF3 + NH3 Æ BF3NH3 B. Decomposition/ Analysis Reactions 1. decomposition (not necessarily heated): a. hydrogen peroxide decomposes into water and oxygen. b. ammonium hy ...
ALE 23. Balancing Redox Reactions
... The Model Oxidation-reduction or Redox reactions involve the transfer of one or more electrons from one chemical species to another. Redox reactions are involved in the corrosion of metals, the combustion of fuels, the generation of electricity from batteries and many biological processes including ...
... The Model Oxidation-reduction or Redox reactions involve the transfer of one or more electrons from one chemical species to another. Redox reactions are involved in the corrosion of metals, the combustion of fuels, the generation of electricity from batteries and many biological processes including ...
PowerPoint Version
... Exchange-correlation functional in the DFT all-electron calculation used to construct the pseudopotential has to be the same as in the target calculation ...
... Exchange-correlation functional in the DFT all-electron calculation used to construct the pseudopotential has to be the same as in the target calculation ...
Chemistry - Nagpur University
... chemical reactions of alkanes: halogenation, nitration, sulphonation, isomerization, cyclization, aromatization, pyrolysis and cracking oxidation, L. P. G., Octane number. Mechanism of free radical chlorination of methane. Cycloalkanes : Nomenclature,Baeyer’s strain theory and its limitations. Ring ...
... chemical reactions of alkanes: halogenation, nitration, sulphonation, isomerization, cyclization, aromatization, pyrolysis and cracking oxidation, L. P. G., Octane number. Mechanism of free radical chlorination of methane. Cycloalkanes : Nomenclature,Baeyer’s strain theory and its limitations. Ring ...
Electronic and atomic structure of liquid potassium via
... M[En,m ] is redefined as the determinant of [En,m ] when M[En,m ] is between 0 and 1, and 1 otherwise. Another difference with Hall’s work is that our approach is not limited to two and three cycle exchange, but includes all higher-order exchange effects. While four, five ...
... M[En,m ] is redefined as the determinant of [En,m ] when M[En,m ] is between 0 and 1, and 1 otherwise. Another difference with Hall’s work is that our approach is not limited to two and three cycle exchange, but includes all higher-order exchange effects. While four, five ...
MISE - Physical Basis of Chemistry
... allowed scientists to investigate the sub-structure and size of atoms. The atom was not homogeneous, i.e., not of uniform density. Most of the mass of an atom was contained in a very small volume – termed the nucleus. This nucleus had a net positive charge. The remainder of the atom was mostly “empt ...
... allowed scientists to investigate the sub-structure and size of atoms. The atom was not homogeneous, i.e., not of uniform density. Most of the mass of an atom was contained in a very small volume – termed the nucleus. This nucleus had a net positive charge. The remainder of the atom was mostly “empt ...
Electronic Structure of Atoms Chapter 6
... 1. Electrons exist only in certain discrete energy levels, which are described by quantum numbers (n). 2. Energy is involved in the transition of an electron from one level to another. However, Bohr model has the following weaknesses: 1. The path of electron around nucleus is considered to be circul ...
... 1. Electrons exist only in certain discrete energy levels, which are described by quantum numbers (n). 2. Energy is involved in the transition of an electron from one level to another. However, Bohr model has the following weaknesses: 1. The path of electron around nucleus is considered to be circul ...
General Chemistry Questions
... 7. Consider the following gas-phase equilibrium: H2(g) + I2(g) ↔ 2HI(g) At a certain temperature, the equilibrium constant Kc is 4.0. Starting with equimolar quantities of H2 and I2 and no HI, when equilibrium was established, 0.20 moles of HI was present. How much H2 was used to start the reaction ...
... 7. Consider the following gas-phase equilibrium: H2(g) + I2(g) ↔ 2HI(g) At a certain temperature, the equilibrium constant Kc is 4.0. Starting with equimolar quantities of H2 and I2 and no HI, when equilibrium was established, 0.20 moles of HI was present. How much H2 was used to start the reaction ...
Chapter One Chemistry
... chemical formula atom homogeneous mixture physical property chemical solution bond ...
... chemical formula atom homogeneous mixture physical property chemical solution bond ...
Chapter 3 Stoichiometry: Calculations with Chemical
... Explanation: This is based on reading the formula and correctly extracting information from it. The formula C2H6SO indicates that every mole of this compound has 2 moles of carbon atoms in it. Thus 4 moles of the compound would have 4 x 2 = 8 moles of C atoms. 13. There are ______ sulfur atoms in 25 ...
... Explanation: This is based on reading the formula and correctly extracting information from it. The formula C2H6SO indicates that every mole of this compound has 2 moles of carbon atoms in it. Thus 4 moles of the compound would have 4 x 2 = 8 moles of C atoms. 13. There are ______ sulfur atoms in 25 ...
Assigning Hybridization: A Tutorial
... resonance, conjugation, or aromaticity. When an atom has tetrahedral geometry it uses sp3 hybridization. For trigonal planar geometry sp2 hybrid orbitals are used. When the geometry is linear, sp hybrid orbitals are involved. When deciding hybridization, first we ask if the molecule in question wou ...
... resonance, conjugation, or aromaticity. When an atom has tetrahedral geometry it uses sp3 hybridization. For trigonal planar geometry sp2 hybrid orbitals are used. When the geometry is linear, sp hybrid orbitals are involved. When deciding hybridization, first we ask if the molecule in question wou ...
Common Curriculum Map Discipline: Science Course: Chemistry
... 9. Write a complete chemical symbol using available information. 10. Calculate a weighted average atomic mass. Chapter 4: 1. Explain that objects emit or absorb energy only in certain fixed amounts called quanta. 2. Discuss how light behaves as both a particle and a wave. 3. Define the photoelectric ...
... 9. Write a complete chemical symbol using available information. 10. Calculate a weighted average atomic mass. Chapter 4: 1. Explain that objects emit or absorb energy only in certain fixed amounts called quanta. 2. Discuss how light behaves as both a particle and a wave. 3. Define the photoelectric ...
Monday, Mar. 23, 2015
... • The electron and hydrogen nucleus actually revolve about their mutual center of mass reduced mass correction!! ...
... • The electron and hydrogen nucleus actually revolve about their mutual center of mass reduced mass correction!! ...
Chemical bond
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are ""strong bonds"" such as covalent or ionic bonds and ""weak bonds"" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.In general, strong chemical bonding is associated with the sharing or transfer of electrons between the participating atoms. The atoms in molecules, crystals, metals and diatomic gases—indeed most of the physical environment around us—are held together by chemical bonds, which dictate the structure and the bulk properties of matter.All bonds can be explained by quantum theory, but, in practice, simplification rules allow chemists to predict the strength, directionality, and polarity of bonds. The octet rule and VSEPR theory are two examples. More sophisticated theories are valence bond theory which includes orbital hybridization and resonance, and the linear combination of atomic orbitals molecular orbital method which includes ligand field theory. Electrostatics are used to describe bond polarities and the effects they have on chemical substances.