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Yi-Hsiang Chao Robert Lewis Lab 5: The Molar Volume of Gases The purpose of this research lab was to find the grinder book of accounts of two gases O2 and H2 and how density and temperature touch on the mill flock. This taste could also be a manner to comparison and confirm the authorized values for hoagie piles of gases. For the scratch government agency of the experiment, we observed the decomposition of hydrogen hydrogen peroxide (H2O2) to H2O and O2 with the benefactor of a gun (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 breathe 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 atomic number 12 (Mg(s)) with 3M HCl solution. As we started the procedure, we observed bubbling and fogging as the HCl dissolved the Mg. The flask al so became 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 modify 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 figure that the bomber volume at STP would be 25.7 moles/L. The accepted 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 imputable 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 counsel that we the O2. The molar volume that we calculated of H2 at STP was 62. moles/L....If you extremity to get a secure essay, order it on our website: OrderCustomPaper.com

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