NEET Chemistry Chemical Kinetics Questions Solved


A drop of solution (volume 0.05 ml) contains 3 x 10-6 mol [H+] ions. If the rate of disappearence of the [H+] ions is 1 x 107 mol L-1 sec-1. How long would it take for [H+] ions in the drop to disappear?

(1) 6 x 10-9 sec

(2) 6 x 109 sec

(3) 1/6 x 109 sec

(4) 1/6 x 109 sec

 

(1) Concentration drop = mol/vol.(ml.) x 1000

     = 3x10-6 /0.056 x 1000 = 0.06 molL-1

     Rate of disappearence = conc. change /time

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