Question

6 Obtain the data from your colleagues in the lab and create a table comparing the Arvalues with drfent Questions to help you prepare for the pre-lab quiz and lab eam 1. Why does the titration endpoint fade after 30-60 sec 2. You covered the top of the burette with a test tube or beaker to prevent its contents from air solvent polarities and leaving groups if applies. rubber or cork stopper not used instead In the kinetics experiment, individual aliquots were quenched by adding them to 98% 2 -propanal why 3. does this stop solvolysis was left open until the following laboratory period when the infinity titration was ate constant have been larger or smaller than the correct" value is some 4. Suppose the reaction flask performed. Would the calculated r evaporation of solvent had occured during thes time 7 from Equation 3 (Hint Set up the concentration Coand Gr in terms of moles/liter for the volume of NaOH used in each titration and recognize the fact that IOH-1 IH1. Substitute these values into Equation 3 and cancel out constants that appear in the new equation.) of using an infinity titration and Equation 7 for analyzing your data instead of Be sure to consider the Glve the possible advantages calculating concentrations of the alkyl halide and using Equaton 3 for the analyses. alternatives for obtaining Co 6. 7 Equation 8 gives the half-Ife, isa of a reaction, which is defined, as thetime raquired for a reaction to reach 50% completion This equation apples to any first order rection, including radioactive disintegration. Show how this equation may be derived from Equation 3. (Hlint When the reaction is complete, G Co) 8. List the possible errors itrvolved in the determination of rate constants by the procedure you used and state the relative importance of each