Chem Sba 1

Name Derell Ruan Form 4B1 SBA interpersonal chemistry Aim To determine which botch up, ammonia water or henry chloride defuses winged. Hypothesis ammonium hydroxide bequeath defuse swift than hydrogen chloride. Materials Equipment Chemicals * 2 retort clamp and stand Ammonia * 1 ? m trash organ pipe * 2 250cm3 beakers * Cotton Wool * immobilize clock * Meter rule * Tweezers * 2 Rubber bum Method The equipment was collected. * The glass underground was placed between the twain clamps ensuring that it was leveled. * A small tally of hydrochloric acidulentulated was poured into the beaker. * The cotton wool wool was placed at one residuum of the glass tubing using tweezers. Seal it off with a rubber bum. * Repeating steps 3-5 simultaneously. * The hold on clock was started, keeping record of fourth dimension taken to the white cloud to form. * The clock time rule was used to measure the outer space of the white cloud from each end of the tube. ResultsChemical Dista nce Time ( in sec) site of Diffusion Molecular weight Ammonia 90 285 0. 315 17. 03 Hydrochloric acid 60 285 0. 210 36. 46 Interpretation of results The purpose of the glass tube is to eliminate place currents and to let the assail molecules will move on their own. The gas molecules follow a path through and through the tube as they collide with the air molecules in the tube. Ammonia will diffuses faster because it has a faster rate of public exposure and it is almost twice a electric arc as Hydrochloric acid.A cloud like soma 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(a) weight of ammonia, and the rate of diffusion is reciprocally proportional to the square root of the molecular mass of the gas. The hypothesis was correct and is prove by the results of the experiment and what was interpreted was as well proven by the results of the experiment. Limitations The experiment could non have been conducted several times modify the results to be more accurate, because of the high bump that it could have done to the human body.