UT CH 302 - CH 302 Worksheet 5 answer key (3 pages)

Previewing page 1 of 3 page document View the full content.
View Full Document

CH 302 Worksheet 5 answer key



Previewing page 1 of actual document.

View the full content.
View Full Document
View Full Document

CH 302 Worksheet 5 answer key

155 views

Lecture Notes


Pages:
3
Type:
Miscellaneous
School:
University of Texas at Austin
Course:
Ch 302 - Principles of Chemistry II
Edition:
1
Documents in this Packet

Unformatted text preview:

Spring 2009 CH302 Worksheet 5 Answer Key How to Systematically Work Harder and Harder Acid Base Calculations Exactly the Same Way Proof that the Seven Steps to Solving Acid Base Problems Work 1 Remove the spectator ions 2 Are there any strong acids or bases 3 Are there any weak acids or bases 4 Do I neutralize are there both acids and bases and is at least one of them strong 5 Neutralize convert everything to moles write down neutralization reaction perform limiting reagent calculation convert back to molarity if necessary 6 Select the appropriate acid base calculation and solve 7 Convert to appropriate final form pH pOH H OH using 14 pH pOH and 14 pKa pKb Important These calculations are based upon the following important assumptions Strong acids and bases completely dissociate Weak acids and bases do not dissociate significantly typically they will have K values 10 3 The dissociation of water does not contribute significantly to pH concentrations of dissolved solutions are large 10 4 and the K values are not near Kw 10 11 In a nutshell all of these problems are worked at high concentrations for a single equilibrium When we get to complex equilibria you will learn how to tackle problems for which the assumptions do not hold 1 What is the pOH of a 0 1 M HClO4 solution What kind of acid base problem was this Strong acid with a pOH of 13 2 What is the pH of a 0 1 M RbOH solution What kind of acid base problem was this Strong base with a pH of 13 3 What is the H of a 0 1 M malonic acid with a Ka of 10 9 solution What kind of acid base problem was this Weak acid with a pH of 5 4 What is the pH of a 0 1 M lithium malonate solution Need a Kb Look at the problem above What kind of acid base problem was this Weak base with a pH of 11 5 What is the OH of a 0 01 M methylamine solution of Kb 10 6 What kind of acid base problem was this Weak base with a OH of 10 4 M 6 What is the pOH of a 0 01 M CH3NH2Br solution Need a Ka Look at the problem above What kind of acid base



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view CH 302 Worksheet 5 answer key and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view CH 302 Worksheet 5 answer key and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?