1.

The acid catalysed hydrolysis of an organic compound A at 30^(@)C has a time for half change of 100 min, when careied out in a buffer solution at pH=5, and 10 min. when carried out at pH=4. Both times of half change are independent of the initial concentration of A. If the rate constant K is given by (-d[A])/(dt)=K[A]^(a)[H^(+)]^(b) what are the values of a and b?

Answer»

a = 1, B = 1
a = 2, b = 1
a = 0,b = 1
a =1, b = 0

Answer :A


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