PPT-Acid – Base Titrations

Titration of HCl with NaOH 000 mL Titrant Added   Titration Reaction   H OH H 2 O   end 01000 M 0 M lots     Equilibrium Reaction. Dr. Harris. Ch. 21 . Suggested HW. : . Ch. 21: 1, 13, 29. Buffers. Solutions that contain both a weak acid and its conjugate base are called . buffers. . . Buffers have the unique ability to . resist sharp changes in pH. . Fundamental Questions for an Analytical Chemist. What is in the sample?. How much is there? . What is the elemental composition?. [C, O, N, F, Cl, P, H, . etc.. ?] . ELEMENTAL ANALYSIS. . Chemical Methods. What did one titration tell the other?  . Let's meet at the endpoint.. Why are chemists great for solving problems?   . They have all the solutions. Titration. A lab procedure by which the concentration of acidic or alkaline solutions are examined and determined. of Salts. Acid-Base Properties of Salts. Type of Salt. Examples. Comment. pH of solution. Cation is from a strong base, anion from a strong acid. KCl, KNO. 3. NaCl. NaNO. 3. Both ions are neutral. Neutral. of Salts. Acid-Base Properties of Salts. Type of Salt. Examples. Comment. pH of solution. Cation is from a strong base, anion from a strong acid. KCl, KNO. 3. NaCl. NaNO. 3. Both ions are neutral. Neutral. Ch. 20. Apparatus used in Volumetric analysis. A Graduated cylinder. Roughly measures the volume of a liquid. The volumetric flask. Is used to hold a definite volume of a liquid.. Should always be clean so needs to be washed out with deionised water before you start!. Prof. Tahir . Shafi. Why should we know about acid base disorders. What are acid base disorders. How to interpret acid base disorder. How to establish the cause. Why to worry about acid base disorders. 11-. 1. Activity: Precipitation Reactions. When a solution of lead(II) nitrate is mixed with a solution of potassium chromate, a yellow precipitate forms according to the equation:. Pb(NO. 3. ). 2. (. Lecture Presentation. James F. Kirby. Quinnipiac University. Hamden, CT. © 20. 15. Pearson Education, Inc.. 16.1 & 16.2 Some . Definitions. Arrhenius. An acid is a substance that, when dissolved in water, increases the concentration of hydrogen ions.. Coakley. 2/27/2014. Quick Review: Acids. Acids are compounds which function as. hydrogen (H+) donors . in biochemical equations/solutes. The more free H+ ions available for donation, the more acidic the compound. M. . Gardner. Copyright2/4/2013. ACID /BASE BALANCE. In order to meet homeostasis, the body fluids must maintain a stable chemical balance of hydrogen ions in body fluids.. This is done by regulating their acidity /alkalinity. . Learning Objectives. Describe . what is meant by acids, bases and . buffers. List . normal pH of the body fluids. . Describe . the processes involved in maintenance of normal blood pH. .. Describe . various types of acidosis and alkalosis. .. Acid-Base Titration. .. المحاضرة الثانية للجزء العملي. . . Acid-Base 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.. Acid. is defined as a substance which when dissolved in water gives hydrogen ions. (H +) . Examples.. Base is defined as a substance which when dissolved in water gives hydroxyl ions. (OH-) . Examples..