PChem322 21 w2

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Monday Feb 1, 2021

Chapter 1: From Classical to Quantum Mechanics

Intro, Sec 1.1, Sec 1.5/ 1.6

DOUBLE SLIT EXPERIMENT (5:13 min)

- pause at 3:39 min

Weds, Feb 3, 2021

- finish up Chapter 1

Particle - Wave Duality worksheet

Thurs, Feb 4, 2021

Lab

Mathematica Activity

Wave Properties worksheet

- Plot --> sin x over 0-->10 range

- Add Manipulate to function --> a*sin x

- Add Manipulate to function --> a*sin (b*x)

- Add Manipulate to function --> a*sin (b*x + c)

- Add Manipulate to function --> a*sin (b*x + c) + d

Linear Combination of "Colors": An Igor Activity

1) Collect the UV-Vis spectra for red, yellow, and blue food coloring solutions.

2) Download ".csv" file (ASCII format) to a USB drive and return to your computer.

3) "Load" these three sets of data (6 waves in total) into Igor and plot all three data sets on a single graph (360 nm - 800 nm).

4) Now, collect the UV-Vis spectrum of a mixture provided; download, load into Igor, and plot of separate graph.

We would now like to analyze this UV-Vis data of the mixture to determine the amount of each of the dyes present. What we are doing is "simulating" the mixture spectrum.

5) "Duplicate" the mixture wave associated with the absorbance and call this wave "sim" for simulation.

6) Go to the "command line" (box at the bottom of all Igor Experiments)...and type in sim=0.333*red_abs+0.333*yellow_abs+0.333*blue_abs, enter <--this command defines the wave "sim."

7) Now append the sim trace/wave to the graph with your mixture spectrum...if the mixture spectrum was 1/3 red, 1/3 yellow, 1/3 blue, then it should match pretty well, but it probably is not 1/3, 1/3, 1/3...

8) in the command window, click on the sim=... statement, it will highlight, then hit enter to move this to the command line...edit the 1/3 coefficients to make the sim match your mixture spectrum...done.

Fri, Feb 5, 2021

Start Chapter 2

Section 2.2

HW: Derivation of Standing Wave Equation