Dakota state university page 213 of 232 plotting

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Unformatted text preview: , for example, to determine the percent acetic acid in vinegar, then here just write the individual calculated values for each run and the final average concentration. Discussion: In two or three paragraphs, discuss your findings, conclusions, sources of error and thoughts on the experiment. How can it be improved? Do you trust the results? Why or why not? Think of any interesting applications of how this might be used elsewhere? Questions: Answer all post- lab questions. As with the pre- lab questions, you need not write the questions here if you don’t want to, but be sure that it is easy to ascertain which answer corresponds with which question. Do’s and Don’ts of Laboratory Notebooks : Dakota State University page 212 of 232 Chemistry Laboratory Notebooks General Chemistry I and II Lab Manual D O write the page number on top of EACH page; D O include an index on the first page or two of the notebook and keep it current; D O write in non-erasable medium; D O write only on the right side of the page; this saves the left side for scratch paper in case you need to perform a calculation during the experiment; D O cross out any errors with a single line, keeping it legible, then date and initialize near the cross-out; DO get my initials before you leave lab (this is proof that you performed the experiment in lab; lab reports without my initials will receive a “0” grade); DON’T tear ANY pages out; DON’T write in pencil or erasable ink DON’T write ANYTHING outside of the notebook; write everything directly into the notebook; DON’T use “White-Out” or blot out errors completely Lab Preview Questions : This is MY proof that YOU are ready for the experiment. You must turn in your pre-lab questions on a separate sheet of paper before the experiment begins. You need not re-write the questions if you don’t want to; however, this section should be written such that it is clear which answer corresponds with each question (typically simply by using the same numbering scheme as in the book). Dakota State University page 213 of 232 Plotting Experimental Data General Chemistry I and II Lab Manual Plotting Experimental Data Prepared By: Richard E. Bleil, Ph.D. Introduction: Often in lab experiments it becomes necessary to make a graph, but unfortunately, many of us have not been given procedures for making a proper graph. As a result, several common mistakes tend to occur; improper scales are chosen resulting in graphs that do not utilize the entire piece of graph paper; straight lines are drawn through only two points; axes and titles are not correctly labeled. If you have never been taught how to make a graph, it is nothing to be embarrassed about. In fact, perhaps it is the educational institutions that you have attended that ought to be embarrassed for having not taught you. In an attempt to ensure that no students go through chemistry without having had this instruction, I’ve written this little guideline for you broken up into individual secti...
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