Lecture 15 - CHM 115 Lecture 15 Todays Lecture Reading was...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
1 CHM 115 Lecture 15 Today’s Lecture Reading was KTT: Review Sections: 4.8, 6.1, 10.3, 10.4 Introduction to Light Spectroscopy Dependency on wavelength Dependency on concentration of sample Infrared Spectroscopy Distinguishing molecular vibrations Detecting functional groups Next Lecture Read Sections: 8.7, 8.8, 12.1 thru 12.3
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Exam 2: 6:30 PM Monday, October 26 (NOTE: earlier time than the last exam) Same seats as before, arrive 15 min. early with pencils, simple calculator. Topics: Reading Assignments and Learning Objectives for Lectures 7 - 14 on Blackboard. Any additional material in Lectures 7 - 14. Labs in Chapters 3, 4, 5.
Background image of page 2
3 LABORATORY THIS WEEK Assignments for Lab 7: Concentration and Spectroscopy Read Chapter 6 in the Chemistry 11500 Laboratory Manual. Complete the Prelab on p. 50 of the lab manual. Read pp. 99-101 in Appendix A of the lab manual. Practice and/or review this information in preparation for lab. Read Sections 4.5 and 4.8 in your textbook. Attend and participate in Recitation. **{This information is posted on Blackboard in the “Lab Information” Folder, in the “Conc. and Spec” sub-folder and is called “Conc. and spec RA.”}**
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 LABORATORY THIS WEEK Concentration and Spectroscopy Goals: Generate a calibration curve from a set of standard solutions. Find the concentration of a solution from its absorbance measured by a UV-Vis spectro- photometer and your calibration curve.
Background image of page 4
Energy (“light”) + Matter (molecules) region of spectrum wavelength range molecular effects …and this means… Gamma pm – nm ionizing damage DNA UV-C 200-280 nm break bonds Highly damaging; totally absorbed by O 2 and O 3 in upper atmosphere UV-B 280-320 nm break bonds Sunburn and skin cancer. Absorbed by O
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/13/2011 for the course CHEM 115 taught by Professor L during the Fall '02 term at Purdue University-West Lafayette.

Page1 / 28

Lecture 15 - CHM 115 Lecture 15 Todays Lecture Reading was...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online