Lab Experiment

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UNIVERISTI TUNKU ABDUL RAHMAN

UNIT CODE : UDEC1144
UNIT DESCIPTION : CHEMISTRY LABORATORY II
NMAE : HO MENG LI
ID : 11ADB01121
YEAR & SEMESTER : YEAR 1 SEMESTER 2
PARTNER’S NAME : KAREN AW KAI LUN
TOK WEE TAT
CHERYL LOW YI LIAN CHEE MAO HAN
GROUP : GROUP 3
EXPERIMENT NO. : 2
EXPERIMENT TITLE: DETERMINATION OF THE ACTIVATION
ENERGU FOR THE REACTION OF BROMIDE AND BROMATE IONS IN ACID SOLUTION DATE : 14 FEB 2012 (TUESDAY)
LECTURER : DR.HA SIE TIONG

EXPERIMENT 2
Title Of The Experiment: Determination Of The Activation Energy For The Reaction Of Bromide And Bromate Ions In Acid Solution Objectives : 1.To understand the chemistry of activation energy. 2. To determine the activation energy for the reaction of bromide and bromated ions in acid solution. Result:

Temperature,T(K)| Temperature,T(C°)| 1/Temperature, K-1| Time taken,t(sec)| Log t| 348| 75| 2.874 x 10-3| 19.32| 1.286|
338| 65| 2.959 x 10-3| 21.69| 1.336|
328| 55| 3.049 x 10-3| 46.59| 1.668|
318| 45| 3.144 x 10-3| 70.06| 1.845|
308| 35| 3.247 x 10-3| 195.47| 2.291|
298| 25| 3.356 x 10-3| 346.63| 2.540|
288| 15| 3.472 x 10-3| 741.00| 2.870|

Calculation:
Finally calculate the energy of activation of the reaction (assume R = 8.314 JK-1). Slope of graph = EA
2.303R
= k
Gradient of the graph = (2.870-1.286)...
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