PPT-Acid-Base Titration . Acid-Base Titration

AcidBase Titration المحاضرة الثانية للجزء العملي AcidBase Titration Analytical chemistry  is the analysis of material samples to understanding of their chemical composition and structure It has a wide range of monitoring pollution in the environment development of new materials and drug manufacture. What are amino acids?. Amino acids are the building blocks of proteins.. In the body, they exist as zwitterions.. Zwitterions can behave as both an acid or a base.. Today we will:. Study . the acid-base properties of amino acids, . Titration. Acid–Base Titration. The concentration of a weak acid or a weak base in water is difficult – if not impossible – to measure directly.. But we can calculate the concentration from the results of titration.. S. aud . U. niversity. College of Sciences. Department. . of. . Chemistry. Practical General Chemistry. . . . . 101 chem & 104 . chem. . Nabil. Lesson 10. Acid-Base Titrations…. PART I: . w. hat is a titration?. h. ow is it performed?. w. hat tools are needed?. PART II: . Perform Titration calculations . A titration is a neutralization reaction! . Topic 9.1. Redox titration reactions. in both titration labs so far this year…. recall if you know 2 out of 3 in in one solution:. M. = . # moles . /. volume(L). you can always solve for the unknown. Learning Goals …. … determine the pH of the solution formed in a neutralization reaction. … . determine the pH of the solution formed in a neutralization . reaction that has not yet reached . Chemistry 1105. Titration . Commercial White Vinegar. Determination of Molar Concentration Of Acetic Acid . . Materials . Acetic Acid , app 5 % per volume . Commercial White Vinegar. NaOH, 0.5 M . Strong Base. acetic acid, CH. 3. COOH, . pKa. = 4.8. 1.0. 0.8. 0.6. 0.2. 0.4. OH. -. equivalents. pH:. A. H. A. -. H. +. [A. -. ] . : [HA] = 1 : 1000. pH: . 1.8. = . pK. a. –3.0. Titration of a weak acid. acetic acid, CH. HCl. samples, by titrating them with 0.100M . NaOH. Solution(titrant. ).. Titration Curve- graph of pH vs. volume of titrant added.. Equivalence pt.- moles acid = moles base. Indicator- a substance that changes color at a specific pH. Volumetry. ). -Acid Base . equilibria. Classical Quantitative Analysis . 2-Titrimetry (volumetric) analysis. Introduction. The term titrimetric analysis refers to quantitative chemical analysis carried out . the process of determining the molarity of an acid or base by using an acid-base reaction where one reactant is of known molarity. .. Get your lab book and copy the lab.. Title. : Acid/Base Titration. Amino acids are weak . polyprotic. acids . . Neutral amino acids are (. gly. , ala, threonine ) are treated as diprotic acids .. acidic amino acids (. glu. , asp,) are treated as . triprotic. acids .. 2. When mixing acid and water, always pour the acid into the water. . 3. Never allow the acid to come into contact with your skin unless your teacher has told you that it is ok. . 4. Always clean up any spilled acid as soon as possible. . Determination of Chloride by the Mohr Method.  . What is precipitation titration. Volumetric methods based upon the formation of slightly soluble precipitate are called . " . precipitation titration .