posted by Mal .
In a reaction involving the bromination of acetone, the following initial concentraions were present in the reaction mixture.
acetone (0.8mol/L), H+ (0.2 mol/L), Br2 (0.004 mol/L)
At 25 degrees C, it took 240s before the colour of Br2 disappeared. If the reaction is zero order in Br2, how long would it take for the Br2 to react if the initial Br2 concentration was 0.008 mol/L and all the other conditions remained the same??