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... oxygen atoms (O2) and those composed of one nitrogen atom and one oxygen atom (NO). The right box, which represents the products, contains only molecules composed of one nitrogen atom and two oxygen atoms (NO2). (b) The unbalanced chemical equation is O2 + NO → NO2 (unbalanced) This equation has thr ...
Chapter 12 Stoichiometry - Ponder Independent School District
Chapter 12 Stoichiometry - Ponder Independent School District

2 - Ponder ISD
2 - Ponder ISD

Multiply Excited Intra
Multiply Excited Intra

... and useful in connection with the so-called symmetric rotor model presented in chapters 3 and 4. The classification follows the ideas presented in a number of papers by Bao et al [14]-[19]. However, the approach here is chosen slightly differently so that the interpretation of the results is compati ...
THE QUArtTIC-QUADRATIC OSCILLATOR
THE QUArtTIC-QUADRATIC OSCILLATOR

... recent reviews: C.A.Carreira, R.C.Lord and T.B.Malloy Jr., Topics in Current Chemistry: 82, Large Ampl.i~ude Motion in Mol.ecul.es II, Springer Verlag (1979); A.C.Legon, to be published, Chem.Rev. (1980) ...
Stoichiometry - hrsbstaff.ednet.ns.ca
Stoichiometry - hrsbstaff.ednet.ns.ca

... Traditionally, the term molecular weight has been used for this quantity. The molar mass of a known substance is obtained by summing the masses of the component atoms as we did for methane. 1.2.2. Distinguish between atomic mass, molecular mass and formula mass. The term molar mass (in g mol-1) can ...
CHEM 322 - Queen`s Chemistry
CHEM 322 - Queen`s Chemistry

...  Rotational Spectroscopy: o Moments of inertia for linear molecules o Classical angular momentum and energy of rotation E=J2/2I o Quantized angular momentum L= J(J+1) ħ2 o Pure rotational spectra o Degeneracy  Vibrational spectroscopy o Harmonic oscillators o Morse potential  Potential energy cur ...
molecular formula
molecular formula

... the chemical formula Molecular mass = mass in amu for a molecule, from nonmetal elements forming covalent bonds Molecule is a covalent compound’s smallest unit, made of nonmetals in covalent bonds Formula mass = mass in amu for a formula unit or for all compounds Formula unit is the smallest whole n ...
The Mole - Cloudfront.net
The Mole - Cloudfront.net

... • Molecular Mass/Molecular Weight: If you have a single molecule, mass is measured in amu’s instead of grams. But, the molecular mass/weight is the same numerical value as 1 mole of molecules. Only the units are different. (This is the beauty of Avogadro’s Number!) ...
CHEM 322 - Queen`s Chemistry
CHEM 322 - Queen`s Chemistry

...  Rotational Spectroscopy: o Moments of inertia for linear molecules o Classical angular momentum and energy of rotation E=J2/2I o Quantized angular momentum L= J(J+1) ħ2 o Pure rotational spectra o Degeneracy  Vibrational spectroscopy o Harmonic oscillators o Morse potential  Potential energy cur ...
Quantized field description of rotor frequency
Quantized field description of rotor frequency

... quantized field Hamiltonian. The interactions for a multispin system under MAS conditions are described in the rotor angle frame using quantum rotor dynamics. In this quasiclassical theoretical framework, the chemical shift, the dipolar interaction, and radio frequency terms of the Hamiltonian are d ...
IV Stoichiometry - s3.amazonaws.com
IV Stoichiometry - s3.amazonaws.com

... atoms or molecules, units are amu. • If you are working on the macroscopic scale, moles of material, units are in grams. ...
Experiment 1 – Data and Error Analysis
Experiment 1 – Data and Error Analysis

Formulas, Reactions, Equations, and Moles
Formulas, Reactions, Equations, and Moles

... • Molecules may consist of identical atoms bonded together (O2) or different atoms bonded together (H2O) ...
L-11 Rotational Inertia symbol I
L-11 Rotational Inertia symbol I

... • A figure skater has a rotational inertia I1 when her arms are stretched out, and I2 when her arms are pulled in close to her body. If her angular velocity is 1 when she spins with her arms stretched out, what is her angular velocity when she pulls hers arms in, so that I2 = ½ I1 = 0.5 I1 • Soluti ...
Chapter 2—Chemical Formulas and Composition Stoichiometry
Chapter 2—Chemical Formulas and Composition Stoichiometry

... 37. What is the mass of 2.2  109 CO2 molecules? a. 9.7  1010 g b. 1.0  1012 g c. 1.2  106 g d. 4.4  1014 g e. 1.6  1013 g ANS: E OBJ: Determine the molecular weight of a substance using atomic weights and the chemical formula. | Use Avogadro's number and molecular weight to convert molecul ...
Moles 2016
Moles 2016

Chapter 3 Chemical Compounds
Chapter 3 Chemical Compounds

... (a) The ions present are the calcium ion (Ca2+) and the phosphate ion (PO43–), so this is calcium phosphate. Remember that the Greek prefixes are not used in ionic compounds, only molecular compounds. (b) The ions present are the chromium(III) ion (Cr3+) and the nitride ion (the ‘-ide’ ending tells ...
Mole/Stoich PowerPoint Notes
Mole/Stoich PowerPoint Notes

... • What does a chemical equation ACTUALLY tell you? What does it all mean? • Ex: N2(g) + 3H2(g) ---> 2NH3(g) • This says that 1 molecule of N2 reacts with 3 molecules of H2 to give 2 molecules of NH3 gas. • Let’s say you have 1 mole of nitrogen gas and an unlimited supply of hydrogen gas – 1. How muc ...
Angular Momentum 23.1 Classical Description
Angular Momentum 23.1 Classical Description

... We learn that, for example, [L̂x , L̂y ] = i ~ Lz . This tells us that it is impossible to find eigenfunctions of Lx that are simultaneously eigenfunctions of Ly and/or Lz . So returning to the issue of [Ĥ, L̂i ] = 0, we can, evidently, choose any one of the angular momentum operators, and have sha ...
chapter 3
chapter 3

... LAW OF CONSERVATION OF MASS tells us that the number of atoms of each element must be equal on both sides of equation. Reactants 2H2 + O2 ...
L z
L z

... Angular Momentum Operator • L is important to us because electrons are constantly changing direction (turning) when they are confined to atoms and molecules • L is a vector operator in quantum mechanics • Lx : operator for projection of L on a x-axis • Ly : operator for projection of L on a y-axis ...
Examples
Examples

...  The same as: 1) Gram Molecular Mass (for molecules) 2) Gram Formula Mass (ionic compounds) 3) Gram Atomic Mass (for elements) – molar mass is just a much broader term than these other specific masses ...
Chapter 11: The Mole1 In what quantity do you purchase the
Chapter 11: The Mole1 In what quantity do you purchase the

... Ratio provides the subscripts in the empirical formula Ionic formulas are always empirical formulas The empirical formula may (or may not) be the same as the molecular formula) o If different, the molecular formula will always be a simple multiple of the empirical formula ...
Angular momentum operator
Angular momentum operator

... Note that the Cartesian components of the angular momentum do not commute with each other. Following our previous discussion on compatible observables, this means that the components are not compatible observables. We cannot measure, for instance, Lx and Ly simultaneously, and we do not have a basis ...
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Rigid rotor

The rigid rotor is a mechanical model that is used to explain rotating systems. An arbitrary rigid rotor is a 3-dimensional rigid object, such as a top. To orient such an object in space three angles known as Euler angles are required. A special rigid rotor is the linear rotor which requires only two angles to describe its orientation. An example of a linear rotoris a diatomic molecule. More general molecules like water (asymmetric rotor),ammonia (symmetric rotor), or methane (spherical rotor) are 3-dimensional, see classification of molecules.
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