Question

volume= 15 mL

CHEMICAL KINETICS: HYDROLYSIS OF ETHYL LACTATE PRE-LAB ASSIGNMENT: Determine the value of the rate constant for the hydrolysis of ethyl lactate from the followin data. It was collected using exactly the same procedure as you will in the lab. Mass of ethyl lactate (grams): 0.5966 Concentration of stock HCl solution: 0.01002 M Standardization titration volumes (of NaOH): Run Vi (mL) V (mL) 1 1.68 17.40 2 17.40 33.10 3 33.10 48.84 Kinetics data: Vi (mL) V (mL) Reaction time run (seconds) 0 0 11 365 2 658 3 1263 4 1859 5 2463 3.64 5.28 8.10 12.44 17.74 5.28 8.10 12.44 17.74 23.68 Room temperature: 21.6°C

Answer 1

och coot + wheth HGH cooals & Hon (EXOM Lecte gyd - Prado mopomolaylar Roxas VI 44.7m I vol. I TOT 23 - 4.C 3.1 5.28 6.24 8,42 4.34 8.40 17.74 2463 17.94 23.68 Ik = 2.303 log Vf vi ws-vi 365 Rate constant & flag. ki = 2.303 log 8.24 k, = 0.0008316 se 2009 - K2 = 2-303-107 624 >> = GIOCO kg = 9.303 log 6.24 - kg = 0. Ky = 2.803 jag 6 94 kg = 0 650 0.00 09.2f 1263 0.00009 fe TOSS 0.0035 ke kitke tkztky 0.00087 к азује се