Chem Lab 1

Monday, October 14, 2011 Chemistry II Purpose: The purpose of this lab was to dead reckoning: By obtaining the accurate measurements for the ideal gas law of nature I lead be able to determine the molar spile of the unnoticeable semiliquid. Introduction: In this experiment, the molar mass of the mercurial replete(p) liquid exit be determined. A evaporable liquid is an unstable liquid that evaporates quickly. PV=nRT The ideal gas law flock be used to shape for any of the variables, R is the ceaseless so it could not be solved for. It will evermore be .0821. You dont need to solve for obligate because it is given. To find out the temperature, measure how hot the stewing piss is. To find out the volume, measure in a graduated cylinder how much body of water supply the flask holds. Finally, rearrange the equivalence to solve for moles. Procedure: The materials were obtained. A 250 mL Erlenmeyer flask with an have cock fictionalisati on was fill up with 5 mL of a liquid hear. The flask was then move directly onto a hotplate until the liquid sample evaporated and there was no ejection seat left on the neck of the flask. Once this happened, the flask was then removed from the hotplate and placed under cold trail water until the vapors inside condensed into a liquid. When the flask was alone cool offed, the stopcock was closed with a clamp and removed from the cool cartroad water. The flask was then dried off and weighed. A card sharp accenter was then used to make a mark on the flask where the rubber stopper ended.

After, the stopcock fable was removed and the flask was rinsed out. The flask was then filled with water up to the sharpie mark and the s! topcock assembly was placed back on the flask. This was then weighed and then the water was poured out. The entire process was then repeated once more. selective cultivation: Table 1. Mass of empty flask and pinchclip |Trial commemorate down |Mass | |1...If you want to get a ripe essay, rewrite it on our website: OrderEssay.net

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