Web Lab 3a Fall 2013-2

# Web Lab 3a Fall 2013-2 - Web Lab 3 Graphing in the...

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Web Lab 3 Graphing in the Laboratory using Microsoft Excel A graph is used to display the mathematical relationship between two properties of a substance. One of the most common relationships displayed by graphing in the laboratory is a linear relationship between two properties. For example, suppose a student measured the volume of a gas at various temperatures and collected the following data: Dependence of the Volume of a Gas on its Temperature Temperature ( O C) Volume (mL) 1 107.9 5 109.7 10 111.7 15 113.6 20 115.5 25 117.5 30 119.4 35 121.3 40 123.2 To make a graph from this data first you must open Microsoft Excel. Then, on a new spreadsheet, the data is entered in the first two columns. 1 107.9 5 109.7 10 111.7 15 113.6 20 115.5 25 117.5 30 119.4 35 121.3 40 123.2 Notice that there are no words or letters entered into the spreadsheet. That is because Excel does not read. It only knows numbers. Don’t worry we will label everything later. Now follow these steps to produce a graph. 1) Look at the top of the screen. See the tabs with various words on them. Click on the tab labeled “Insert”. The top of the screen should change. There should be a row of icons each representing a different type of graph. You want the icon labeled “Scatter”. This option will place the data in the first column on the X axis (horizontal), and the data in the second column on the Y axis (vertical).

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2) On the “Scatter” icon there is a little upside down triangle at the bottom. Click on that and you will see a pull down menu of the various types of scatter graphs. To
• Spring '14
• AllenH.Redmon
• Euclidean geometry

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