How Does Molecular Weight Affect The Rate Of Potassium Permanganate Diffusion
METHODOLOGY
After formulating the hypothesis that the molecular weight affects the rate of diffusion, three different kinds of substances --potassium permanganate (KMNO4), potassium dichromate (K2Cr2O7) and methylene blue (C16H18N3SCl), were used to test the validity of the hypothesis. Potassium permanganate is an inorganic chemical compound which is in violet liquid form; potassium dichromate is an orange inorganic chemical reagent and methylene blue is a chemical compound commonly used for staining because of its color blue. These three substances have 158 g/mole, 294 g/mole and 374 g/mole, respectively. A jelly-like substance, agar-water gel in a petri dish was used as a medium for diffusion since water and air, as a medium, are not controllable
After formulating the hypothesis that the molecular weight affects the rate of diffusion, three different kinds of substances --potassium permanganate (KMNO4), potassium dichromate (K2Cr2O7) and methylene blue (C16H18N3SCl), were used to test the validity of the hypothesis. Potassium permanganate is an inorganic chemical compound which is in violet liquid form; potassium dichromate is an orange inorganic chemical reagent and methylene blue is a chemical compound commonly used for staining because of its color blue. These three substances have 158 g/mole, 294 g/mole and 374 g/mole, respectively. A jelly-like substance, agar-water gel in a petri dish was used as a medium for diffusion since water and air, as a medium, are not controllable