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The hydrolysis of an ester in acid medium is first order reaction. Half life period of a first order reaction is 20 seconds. How much time will it take to complete 90% of the reaction? |
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Answer» Solution :`k=(0.693)/t_(1/2)=0.693/20=0.3465s^(-1)` If INITIAL CONCENTRATION`[R]_0`=100,[R]=100-90=10 `thereforet=2.303/k LOG ([R]_0)/([R])2.303/0.03465 log 100/10=(2.303xx1)/0.03465=66.46`SECONDS |
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