ChemistrySample Question: HMO Theory for the Allyl Cation, Radical and Anion => Write down the Hiickel secular determinant for the acyclic three C-atoms in terms of x, where x = (α – E)/ β. => Solve…
ChemistryChemical Analysis of the Spectra of Three or More Components A student in their lab dass measured the following spectroscopic data for some pure samples of three indicators thymol blue (TB), semithymol blue (STB) and…
ChemistryChemical Analysis of Well Separated Spectral Regions For a single absorbing molecular species in solution, the Beer-Lambert Law states that A = Ɛ l c where A is the absorbance, e is…
ChemistryWhat is the Speed of Chemical Reactions? The Arrhenius equation is an important equation in chemical reactions kinetics where k is the rate constant, A is the pre-exponential factor, Ea the activation…
ChemistrySample Question: Chemistry and Simultaneous Equations There is a linear relationship between the Celsius and Fahrenheit temperature scales such that TF = mTc + C Given that the freezing point of…
ChemistrySample Questopn: Methane Molecular Structure Analysis Using the coordinate data from the solution to Question “Methane Molecular Structure Analysis, and so find the coordinates for the carbon and hydrogen atoms in…
ChemistryQuestion Sample: Methane Molecular Structure Analysis Calculate a set of Cartesian coordinates to 4 significant figures with respect to the origin for the carbon and hydrogen atoms of a methane molecule…
ChemistrySample Question: Molecular Structure Analysis of Cyclic Molecules Calculate a set of Cartesian coordinates with respect to the origin for firstly, the carbon atoms only of benzene given that the C-C bond distance…
ChemistryThree-Dimensional Molecular Symmetry Operations For transformations in Three-Dimensional Molecular Symmetry Operations, find matrix equations that represent the following operations. Anticlockwise rotation about the x-axis. Anticlockwise rotation about the y-axis.…
ChemistryMolecular Symmetry Operations, Linear Transformations The positions of atoms in a molecule can be defined in terms of Cartesian coordinates x, y, z. In the analysis of molecular geometry there…