Chem 225

This page was last updated on 03-Jan-17

(Mark lookup for 04-2016 is no longer available. Contact Dr. Banks.)

Generate your own titration curves! Click here.
(Now includes both titration of acid with base and titration of base with acid.)

Homeworks for Fall 2016 N.B. Students who are unable to attend class to hand in the homework in time should email it to me. First Homework for submission Key: Hmwk 1 04-2016 key.pdf (Updated to reflect actual marking scheme, and missing answer.) Second Homework for submission Key: Hmwk 2 04-2016 key.pdf Third Homework for submission Key: Hmwk 3 04-2016 key.pdf Fourth Homework for submission Key: Hmwk 4 04-2016.pdf Homework 4a for submission Key: Hmwk 4a 04-2016.pdf Homework 4b for submission Key: Hmwk 4b 04-2016.pdf Seventh Homework for submission Key: Hmwk 7 04-2016.pdf	Practice Problems Principles of Logarithms and the p operator Problems on kinetics General equilibiria Problems on acids and bases Problems on solubility etc. Problems on Redox and cells etc. Past Exam Papers (Be selective about the problems you try as we move through the course.) Today (30th Nov 2016) Hand out today (30th Nov 2016) with some corrections Some more equilbrium problems
	Tests Answer-keys-225/Test 1 04-2016 key.pdf Answer-keys-225/Test 2 04-2016 key.pdf
Simulations, Links and Other Resources Free resources: Open Office - for those who don't want to pay for Excell, Word etc. Doc Brown pH of a Dilute Acid Chemical Kinetics http://www.docbrown.info/page03/ASA2rates.htm http://www.docbrown.info/page03/ASA2rates2.htm http://en.wikibooks.org/wiki/General_Chemistry Equilibria Virtual Chemistry Resources Home Page Free etextbook A UK web site for "A"-level students (roughly the same as College years I and II) Equilbria 1 - Doc Brown Equilibria 2 - Doc Brown Equilibria 3 K_c & K_p - Dox Brown A common student error in equilibrium studies Students often fall into the error of thinking that after compression of a gaseous system, or the addition of a reactant (at constant volume), the final concentration(s) of reactants and/or products might be less than they were originally. This can never be the case. I have written out a formal proof of this. I have even seen this error propagated in a text book.	Practicals No practical Monday 14 Nov 16! We'll continue with the lectures. We should be finished soon! How to write up a practical Lab Rules - read and inwardly digest! Practical number 7.pdf - We shall probably do this practical (not number 6) on Monday 24th October. Practical number 8.pdf Each group should write one report. It should cover the titration of HCl(aq) with NaOH(aq) fully, including a graph showing calculated values and measured values, and the titration of CH₃COOH(aq) with NaOH(aq) with a graph showing only calculated values if you were not able to do this titration. You are encouraged to produce the graphs and do the calculations with a spread sheet program, but you don't have to. Practical number 9.pdf How to write up a practical Help on practical #1 (Some background with help for Excel) Practical #2 This Excel spreadsheet shows a graph of ln(rate) against 1/T with negative slope. You can download it and put in your values to better understand Excel (or similar spreadsheets). (Your slope in experiment 2 should be positive since the graph is ln(t_d) against 1/T). Specimen results for practical #3 (Don't use these except for reference without express permission, or you will be accused of cheating!) Graph blanks for practical #5 Practicals are also available for download from http://ghgchem.info/drupal7/node/9
Textbook Brown LeMay & Bursten, Chemistry: the Central Science, 13th ed.	Course Outline Chem 225

	Handout Solubility and Solubility Product