Lecture 3 with ink

Lecture 3 with ink - Lecture 3 Reading Assignments...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: Lecture 3 Reading Assignments Important to keep up with material Lab Reports TAs should be returning your work the following lab so you have feedback. Midterm next Monday Grade Checker (will be up by this Friday) http://www.chem.ucsb.edu/cgiwrite/grades/ Review of Acid/Base Chemistry Extraction Techniques Drying Organic Liquids Recrystallization Infrared Spectroscopy How do you separate (purify) organic compounds?? Distillation Extraction Recrystallization Sublimation Chromatography pH -log[H + ] typical scale 0-14 K a (equilibrium constant) HCl ( aq ) H + ( aq ) + Cl- ( aq ) K a = [H + ][Cl- ] / [HX] pK a -log K a Tells us how easy a proton (H + ) is to be given up Tells us the direction of equilibrium and by how much Common pK a values http://www2.lsdiv.harvard.edu/labs/evans/pdf/ evans_pKa_table.pdf http://www.youtube.com/watch?v=U_bZZt1zs60 http://www.boingboing.net/2008/10/16/how-to-make-cocaine.html Extraction http://www.scivee.tv/tag/dr._haim_weizman Recrystallization http://www.youtube.com/watch?v=aAa065hWyYg Must have 2 immiscible liquids The distribution of a solute between these two layers is governed by the partition coefficient (K) K = [A] org / [A] aq A = solute Do not confuse this with K a . Typical solvents used in extraction Ether, Ethyl Acetate, Dichloromethane Are these solvents top layer or bottom?...
View Full Document

Page1 / 51

Lecture 3 with ink - Lecture 3 Reading Assignments...

This preview shows document pages 1 - 12. Sign up to view the full document.

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