Rate of Diffusion of Potassium permanganate, Potassium dichromate, and Methylene blue1 http://persuasive-essay-writing811.mystrikingly.com 1The Effect of Molecular Weight and Time on the Rate of Diffusionof Potassium permanganate, Potassium dichromate, and Methylene blue1scientific paper submitted in partial fulfillment of the requirements in GeneralBiology I laboratory under Prof. Diana Rose Gonzales, 1st sem., 2013 2014_2ABSTRACTThe effect of molecular weight and time on the rate of diffusion of potassium permanganate,potassium dichromate, and methylene blue was testedusing a petri dish of agar water gel with three wells.The three substances were dropped simultaneously inthe petri dish. Potassium permanganate (MW158g/mole) increased rapidly (14.50 mm) whileMethylene blue (MW 374 g/mole) gradually increased(9.50 mm) only. Thus, molecular weight and timeaffects the rate of diffusion.INTRODUCTIONDiffusion is a movement of molecules from an area of higher concentration to anarea of lower concentration. The particles will fuse when they are evenly distributed andhave reached equilibrium.
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