Test Wednesday, everybody! If you can't do molarity problems, molality problems, or problems on colligative properties, then start practicing. Feel free to comment with practice problems.
- A monoprotic acid is an acid that can donate only one proton.
- A polyprotic acid can donate more than one proton per molecule.
- A diprotic acid can donate to protons per molecules, and a triprotic acid can donate three protons per molecule.
- A Lewis acid is an atom, ion, or molecule that accepts one electron pair to form a covalent bon. This is the broadest of the three acid definitions. A bare proton is a Lewis acid. This is the only definition that is not based on hydrogen. A silver ion can be a Lewis acid, for instance.
Here's a table for remembering the different definitions of acid.
- |
Acid |
Base |
Arrhenius |
H, H3O producer |
OH producer |
Bronsted-Lowry |
proton donor |
proton acceptor |
Lewis |
electron-pair acceptor |
electron-pair donor |
- The species that remains after a Bronsted-Lowry acid has given up its proton is the conjugate base of that acidd.
- Bronsted-Lowry acid-base reactions involve 2 acid-base pairs, known as conjugate acid-base pairs.
And no, I don't have a clue why Blogger put a giant gap before the table.
This is a good site on Lewis Acids and Bases.
ReplyDeletehttp://www.meta-synthesis.com/webbook/12_lab/lab.html
good job jim, dont forget to look over all the tables and sneaky bold points at the top corners of the pages they will be on there
ReplyDeleteShe said that there is not a lot of equation problems. I believe she said 7
ReplyDeleteremember the test was postponed till Wednesday so study up!!!!!
ReplyDeleteSome good review questions about molarity:
ReplyDeletehttp://www.chemteam.info/Solutions/Molarity-problems-answers.html
heres a site on Lewis acids and bases
ReplyDeletehttp://chemwiki.ucdavis.edu/Physical_Chemistry/Acids_and_Bases/Acid/Lewis_Concept_of_Acids_and_Bases
Good website on polyprotic acids
ReplyDeletehttp://www.science.uwaterloo.ca/~cchieh/cact/c123/polyprot.html
Test will be equally balanced but first few questions are conceptual so study up and memorize the solubility rules. A hint would be that most metals just sink therefore they aren't soluble like silver
ReplyDeleteAll common compounds of Group I and ammonium ions are soluble.
ReplyDeleteAll nitrates, acetates, and chlorates are soluble.
All binary compounds of the halogens (other than F) with metals are soluble, except those of Ag, Hg(I), and Pb. Pb halides are soluble in hot water.)
All sulfates are soluble, except those of barium, strontium, calcium, lead, silver, and mercury (I). The latter three are slightly soluble.
Except for rule 1, carbonates, hydroxides, oxides, silicates, and phosphates are insoluble.
Sulfides are insoluble except for calcium, barium, strontium, magnesium, sodium, potassium, and ammonium.
Don't forget to study those walkthroughs on how to do solubility experiments. They were those first two questions on the quiz that almost nobody knew how to do.
ReplyDeletehttp://www.youtube.com/watch?v=vShCnTY1-T0
ReplyDeleteHere's a khan academy video on lewis acids and bases
Remember to look over EVERY example problem, since the test will be about half and half. Also the test is about equally split between Chapter 12 and Chapter 13, so KNOW BOTH. The test will be 35 questions, so each one is gonna be about 2.7 points each, so you can't afford to miss too many this close to the end of the year. So, study up guys; and let's finish strong!
ReplyDeletehttp://www.nyu.edu/classes/tuckerman/honors.chem/lectures/lecture_21/node4.html
ReplyDeletegood site on lewis acids and bases
http://www.nyu.edu/classes/tuckerman/honors.chem/lectures/lecture_21/node3.html
ReplyDeleteexplains Bronsted-Lowry acid-base reactions
here is a website on lewis and bronsted acids
ReplyDeletehttp://www.meta-synthesis.com/webbook/42_acids-bases/lewis.html
http://www.nyu.edu/classes/tuckerman/honors.chem/lectures/lecture_21/node4.html
ReplyDeleteHeres a good site on Lewis acids and bases
he is a great site about acids
ReplyDeletehttp://www.purchon.com/chemistry/acids.htm
This is a very helpful site giving details on what acids are about:
ReplyDeletechemistry.about.com/library/weekly/aa112201a.htm