Chem Sba 1

Name Derell Ruan Form 4B1 SBA Chemistry bugger off To determine which splatter, ammonia water or hydrogen chloride defuses hurried. Hypothesis Ammonia impart defuse faster than hydrogen chloride. Materials Equipment Chemicals * 2 retort clamp and put forward Ammonia * 1 ? m glass tube * 2 250cm3 beakers * cotton Wool * Stop time * Meter rule * Tweezers * 2 golosh bum Method The equipment was collected. * The glass tube was fit(p) between the two clamps ensuring that it was leveled. * A small amount of hydrochloric acid was poured into the beaker. * The cotton wool was placed at one end of the glass tube using tweezers. legal tender it off with a rubber bum. * Repeating steps 3-5 simultaneously. * The stop clock was started, keeping record of time taken to the white horde to conformation. * The measuring rod rule was used to measure the distance of the white cloud from each(prenominal) end of the tube. ResultsChemical Distance Time ( in sec) Rate of Diffusion molecula r(a) weight Ammonia 90 285 0. 315 17. 03 Hydrochloric acid 60 285 0. 210 36. 46 comment of results The purpose of the glass tube is to eliminate air currents and to let the gas molecules will move on their own. The gas molecules follow a pass through the tube as they collide with the air molecules in the tube. Ammonia will diffuses faster because it has a faster rate of airing and it is about twice a light as Hydrochloric acid.A cloud like frame of reference should show up when the gases collide. Conclusion The reaction which is taking place is ammonia + hydrogen chloride ammonium chloride NH3(g) + HCl (g) NH4Cl (s) The exact time taken for the cloud to form depended on the dimensions of the tube, and the amount of the solutions which are put on the cotton wool. The cloud formed nearer to the hydrochloric acid end of the tube because ammonia diffuses faster than hydrochloric acid.This is because hydrogen chloride has almost twice the molecular weight of ammonia, and the rate of diffusion is inversely proportional to the square root of the molecular mass of the gas. The opening was correct and is proved by the results of the experiment and what was interpreted was also proven by the results of the experiment. Limitations The experiment could not have been conducted several times change the results to be more accurate, because of the high risk that it could have done to the serviceman body.