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Name ___________________________ Class Day _________ Date __________ CHM 130 LL essay #1 Pre-Lab Assignment As part of the pre-lab assignment you argon needed to print out a copy of the look into and take away it to class the day the try out is to be done. The pre-lab assignment is knowing to help you gain a recrudesce understanding of what entrust be done during the laboratory so you can tar rise the most out of the clock time in lab and be adapted to complete the experiment in the required tot of time. You are required to kick the bucket wind the MSDS sheet at the Flinn scientific MSDS web page (http://www.flinnsci.com/search_MSDS.asp) for individually chemical you will be using in the experiment. This insures you are aware of the potential wellness hazards of works with these chemicals and understand the preventative requirements necessary while working in the chemistry laboratory. (1) What is the mark of essay #1? + Experiment with physical p rocesses used to fragment the component of mixtures. Be able to identify characteristics of physical processes as compared to chemical processes. + Use bunsen burner properly and safely + put on techniques of filtration, extraction, and sublimation for separating the components of mixtures. + Correctly measure and memorialise the majority and volume in this experiment.

Be sure to record mensurations with the advance sum of operative figures and the suspense of each metre. (2) What determines the number of digits you record when taking a measurement? Precision of the measurement determines the number of digits you record (3) What is ! the uncertainty of an analytical balance? The uncertainty of an analytical balance (4) What do significant figures tell us about a measurement? The significant figures tell us about how precise the experiment is (5) How many significant figures in each of the following measurements? (a) 45 g __2_______(b) 0.04 g ___2_____(c ) 4050.0 L ___5_____ (d) 0.0098 m __3____(e)...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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