EXPERIMENT IV Oxidation-Reduction Reactions PURPOSE: Determine the cell voltage for several oxidation-reduction reactions and determine how concentration and pH affect the potential (free energy) of these reactions. INTRODUCTION: This experiment is r
EXPERIMENT I Acid Base Equilibrium and Buffers PURPOSE: Determine the pH of aqueous solutions of weak acids and bases using pH indicators, standardized buffer solutions, and a pH meter. Prepare a buffer of specified pH using a weak acid and the salt
EXPERIMENT III Alkalinity PURPOSE: To determine the alkalinity of a water sample using a double - endpoint titration for determination of [OH-] and [CO32-], and compare the results to those of a potentiometric titration. INTRODUCTION Alkalinity is a
Selected Indicators(a) Bromphenol blue yellow yellow yellow 3.0 green green 4.6 blue blue blue blue blue blue blue blue Blue Blue Blue Blue purple purple purple purple Blue purple Blue purple Blue green 6.8 green 5.4 5.2 green yellow 6.