Pre-lab Guidelines for titration lab Period 1Pre-lab guidelines for Titration Lab Period 2FALL 2001 CHEM 14CL Expt. 8 - The Determination of the Concentration and Acid Dissociation Constants of an Amino Acid Pre-lab is due at the beginning of the lab section. Pre-lab report MUST be written inside your LAB NOTEBOOK. PRE-LAB GUIDELINES FOR TITRATION LAB PERIOD 1 PERIOD 1 PRELAB IS DUE ON EITHER 9/27 OR 9/28 DEPENDING ON THE DAY OF YOUR REGULARLY SCHEDULED LAB. (I) Introduction (II) Flowchart of procedures for the ENTIRE experiment and cite the reference for the procedures. (III) Study questions - complete ONLY questions 1,2 &3 (MUST show all work for full credit) NOTE: Question 3 (see page 94) should read 3.29 ml of HCl and 18.61 ml of NaOH Hint: For question #3, assume that the 10-ml unknown solution contains both the A & A- forms of the amino acid. Refer to the lab manual for the structures of the A & A- forms of the amino acid. Also, when solving question #3, think about what chemical reaction took place when HCl was added to a mixture of A & A-. How about when NaOH was added to a mixture of A & A-? PRE-LAB GUIDELINES FOR TITRATION LAB PERIOD 2 PERIOD 2 PRELAB IS DUE ON EITHER 10/2 OR 10/3 DEPENDING ON THE DAY OF YOUR REGULARLY SCHEDULED LAB. NO NEED TO CONTRUCT A FLOWCHART OR WRITE A INTRODUCTION FOR PERIOD 2 PRELAB. Complete ONLY the study questions assigned below. Complete study questions 1a & 1b ONLY under the section "Prelab Assignment - Period 2" (see page 95). (MUST show all work for full credit) NOTE: All the pK in the problems are pKa NOT pKb.There is NO prelab for period 3 of the
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