Difference between revisions of "PChem322 21 w2"
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:- Plot --> sin x over 0-->10 range | :- Plot --> sin x over 0-->10 range | ||
:- Add Manipulate to function --> a*sin x | :- Add Manipulate to function --> a*sin x | ||
| − | :- Add Manipulate to function --> a*sin b*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) | ||
:- Add Manipulate to function --> a*sin (b*x + c) + d | :- Add Manipulate to function --> a*sin (b*x + c) + d | ||
| Line 33: | Line 33: | ||
:4) Now, collect the UV-Vis spectrum of a mixture provided; download, load into Igor, and plot of separate graph. | :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. | ::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. | + | :5) "Duplicate" the mixture wave associated with the absorbance and call this wave "sim" for simulation. |
| − | :6) ... | + | :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== | ==Fri, Feb 5, 2021== | ||
Start Chapter 2 | Start Chapter 2 | ||
| + | ===Section 2.1 - Skip for now=== | ||
| + | ===Section 2.2=== | ||
| + | [[Media:HW5_Standing_wave.pdf|HW: Derivation of Standing Wave Equation]] | ||
Latest revision as of 22:10, 5 February 2021
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
- - 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