1.

Consider a certain reaction Ato" Products with "k=2.0xx10^(-2)s^(-1) Calculate the concentration of A remainig after 100 s if the initial concentration of A is 1.0" mol L"^(-1).

Answer»

SOLUTION :The units of k SHOW that the reaction is of first order. HENCE, `k=(2.303)/(t)log""([A]_(0))/([A])`
`:.2.0xx10^(-2)s^(-1)=(2.303)/(100s)log""(1.0" MOL L"^(-1))/([A])" or "log[A]=-0.8684`
`:.[A]=" Antilog"(-0.8684)=" Antilog "(1.1316)=.1354" mol L"^(-1).`


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