Difdusion

CHAPTER III METHODOLOGY A. Research Design This chapter presents the experimental system of the study of the tramp of dispersion of different substances. The regulate of dispersion between gases is tested by dint of the diffusion of the gases of ammonia source and hydrochloric social disease in a glass tube. On the another(prenominal) hand, the localize of diffusion of black compounds is analyzed in an agar-water colloidal gel medium. The data recorded is and then used for the calculation of the rate of diffusion of each substance. B. Materials and Equipment Materials| Chemicals / Ingredients| glass over tube| Hydrochloric acid (HCL)| Cotton ballsRing stand| Ammonium hydrated oxide ( NH4OH)Agar-water gel| squeeze| Potassium permanganate (KMnO4)| ruler| Methylene unsanctified (C16H18N3SCl)| Petri dishSpatula| Potassium dichromate (K2Cr2O7)| C. Demonstration of Diffusion of Gases A long plastic or glass tube is fasten and clamped horizontally to a cod stand. Open the store of ammonium hydroxide and hydrochloric acid cautiously, pointing the bottle away from both you and the audience. Moisten unitary effectuate of cotton plant with hydrochloric acid (HCl) and another piece of cotton with ammonium hydroxide (NH4OH). At the same time, mickle oneness annul of the tube with one piece of the wet cotton and plug the other end of the tube with the other piece of cotton.

carefully watch the tube and observe a ring of face cloth powder or white smoke forming rise the midpoint of the tube. This is ammonium chloride (NH4Cl). The appearance of ammonium c hloride is an evidence that molecules confi! ne delicate from the wet cotton. D. Calculating the Rate of Diffusion of Gases We rate the rate of diffusion of gasses using this formula: (Eqn. 1) where: Rate1 is the rate of burst of the low gas (volume or number of moles per unit time). Rate2 is the rate of enlargement for the second gas. M1 is the  molecular(a) weight of gas 1 M2 is the molecular weight of gas 2. Grahams law states that the rate of...If you want to cede a full essay, order it on our website: BestEssayCheap.com

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