Lecture 2102014.pdf

4 Pages
71 Views

Department
Chemistry
Course Code
CHEM 2121
Professor
Nicholas Frost

This preview shows page 1. Sign up to view the full 4 pages of the document.
Description
Lecture 2102014Monday February 10 20141219 PMEhcElectromagnetic spectrumenergy increases rightleft wavelength does oppositeMicrowave radiation induces rotational energyIR induces vibration can be used for qualitative work since different molecules need different amounts of work to vibrate the bondsUVvis promote electrons to higher energy levels focusing hereXrays breaks bonds ionizesFocusing on UVVisExcited state electronicEnergyGround Electron StateCan promote electron to higher electronic statewith some more energy can go into a rotational state too many different ways you can go Absorbance ATransmittance see diagramneed to select certain wavelength to hit our sampledo this with a monochromatorThen the light hits a sample and some of the light comes outTransmittance T measures relatively how much light comes out what fraction makes it out of the sample what percentage is transmittedTPP 0T10Absorbancedef AlogPPlogPPlogT00so why do we convert to absorbanceex cuvet w aqueous samplePdPz AChem Page 1
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit