Sample Question: HMO Theory for the Allyl Cation, Radical and Anion
Chemistry

Sample 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…
Chemical Analysis of the Spectra of Three or More Components
Chemistry

Chemical 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…
Chemical Analysis of Well Separated Spectral Regions
Chemistry

Chemical 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…
What is the Speed of Chemical Reactions?
Chemistry

What 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…
Sample Question: Chemistry and Simultaneous Equations
Chemistry

Sample 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…
Sample Questopn: Methane Molecular Structure Analysis
Chemistry

Sample 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…
Question Sample: Methane Molecular Structure Analysis
Chemistry

Question 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…
Sample Question: Molecular Structure Analysis of Cyclic Molecules
Chemistry

Sample 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…
Three-Dimensional Molecular Symmetry Operations
Chemistry

Three-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.…
Molecular Symmetry Operations, Linear Transformations
Chemistry

Molecular 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…
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