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Yi-Hsiang Chao Robert Lewis Lab 5: The Molar Volume of Gases The purpose of this lab was to find the grinder book of accounts of two gases O2 and H2 and how density and temperature unnatural the mill record book. This taste could also be a focusing to comparison and confirm the judge values for hoagie account books of gases. For the starting signal government agency of the experiment, we observed the decomposition of hydrogen bleach (H2O2) to H2O and O2 with the benefactor of a gas (FeCl3). We used 20mL of 3% H2O2 solution with 4.5mL of 3 M FeCl3 as a catalyst to produce O2 gas. As the chemical reaction began, we observed glittery as well as a dramatic raise up increase in the reaction flaskfulful. The match equation is as follows: 2H2O2 (l) 2H2O (l) + O2 (g) Part two of the experiment involved reacting solid milligram (Mg(s)) with 3M HCl solution. As we started the procedure, we observed bubbling and fogging as the HCl dissolved the Mg. The flask also b ecame heated imputable to the exothermic nature of the reaction. The balanced equation is as follows: Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g) For some(prenominal) parts, we measured the volume of gas produced by the reaction by measuring the volume of water that was displaced in the reaction. The reaction flask was attached to another flask alter with water which in turn fed into a beaker.

The volume of water displaced from the flask of water to the beaker is the same as the volume of the gas created in the reaction flask. For the measured volume of O2 produced, we bet that the hoagy volume at STP would be 25.7 moles/L. The authentic value for the molar ! volume of O2 at STP is 22.392 moles/L. The molar volume that we mensural were not the same as the accepted value of deification gases at STP, but this was probably receivable to error do during the experiment. Percent error = (|25.7moles/L 22.392moles/L| / 22.392moles/L) * 100 `= 14.7% We calculated the molar volume of H2 the same behavior that we the O2. The molar volume that we calculated of H2 at STP was 62. moles/L....If you pauperization to get a secure essay, order it on our website: OrderCustomPaper.com

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