The Atomic Coordinates and Partial Charges for the Planar Molecule

question 4

Multiple Choice

The atomic coordinates and partial charges for the planar molecule fluoroethene, C₂H₃F, are
$\begin{array}{lrrrr} & x / A & y / A & z / A & \text { Partial charge } \\\mathrm{C} & -0.669 & 0.019 & 0.000 & +0.353 \mathrm{e} \\\mathrm{C} & 0.669 & -0.019 & 0.000 & -0.367 e \\\mathrm{H} & 1.211 & -0.978 & 0.000 & +0.039 \mathrm{e} \\\mathrm{H} & 1.265 & 0.906 & 0.000 & +0.041 e \\\mathrm{H} & -1.257 & -0.913 & 0.000 & 0.008 \mathrm{e} \\\mathrm{F} & -1.306 & 1.178 & 0.000 & -0.075 \mathrm{e}\end{array}$ Calculate the x and y components of the dipole moment.

• A)  _x = -4.72  10^-30 C m,  _y = -1.33  10^-30 C m
• B)  _x = -0.295  10^-30 C m,  _y = -0.083  10^-30 C m
• C)  _x = -7.27  10^-33 C m,  _y = -1.28  10^-30 C m
• D)  _x = 1.10  10^-29 C m,  _y = 2.96  10^-30 C m

Understand the principles behind the valuation of annuities and perpetuities.

Calculate the present value of annuities, both ordinary and growing, using different rates of return.

Understand the concept of financial saving goals and how to calculate future value towards achieving those goals.

Apply the concept of the time value of money to various financial planning and investment situations.

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Definitions:

Cash Flow Growth Rate

The rate at which a company's cash flow from operations increases over a given time period.

Required Rate

The minimum rate of return expected by investors on an investment or project.

Growing Annuity

An annuity that increases at a proportionate rate during the period of the contract, typically to combat inflation.

Annuity Growth Rate

The rate at which the value of an annuity investment increases over time.