Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The half-life of a first order reaction is 24 hours. If we start with 10 M initial concentration of the reactant, then the concentration after 96 hours will be - Sarthaks eConnect
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The half-life of a first order reaction is 24 hours. If we start with 10 M initial concentration of the reactant, then the concentration after 96 hours will be

A.

6.25 M

B.

1.25 M

C.

0.125 M

D.

0.625 M

Solution

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Best answer

Number of half-lives =`96/24=4`

Concentration remaining after 96 hrs.

`=10/(2)^4=0.625M`