BIOL499A Study Guide - Phosphate, Glenn Mccoy, Weak Base

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL499A
• Professor: Blaine Mullins

Document Summary

The flying mccoys by glenn and gary mccoy. I reviewed the exam during class solutions will be posted later in the week. Start by picking your exam from my office w4-13b (while i"m there). I will not bring the exams to class. Find the equil. conc. in a solution of 1. 0 m hcooh. Hcooh (aq) + h2o (l) h3o+ (aq) + hcoo (aq) Solve assuming 1. 0 x 1. 0 x2. Percent dissociation = amount dissociated initial concentration x 100% Note that the percent dissociation is very similar to the error we calculated in our check. Therefore calculating percent dissociation is a valid check for acids and bases provided it is less than 5%. You must check your assumption x 100 % < 5% then valid calc approx calc. 0. 9859 1. 000 x 100 % = 1. 4% < 5% Remember an approximation is valid when it is less than 5 %. acid is diluted.