Q24 of 39 Page 117

Consider a certain reaction A → Products with k = 2.0 × 10–2s-1. Calculate the concentration of A remaining after 100 s if the initial concentration of A is 1.0 mol L–1.

Given,


k = 2.0 × 10–2s-1


time t = 100s


Concentration [A0] = 1.0 mol L-1


We know,


On substituting the values,


Log(1/[A]) = 2.303/2


Log[A] = -2.303/2


[A] = 0.135 mol L–1


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