Hello! I need help with knowing how to find certain data in the L3 and L4 columns using my calculator and plotting the graph to know which order the reaction is. I know you go to stats then to edit, and you put in the given info into L1 and L2. After that, you scroll up to L3 and highlight it. I just don't know where to go next/what to enter, and that's my main problem.
In a prelab, this data was given:
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Reaction Absorbance ln(Abs) 1/Abs
Time
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1min .366 (-1.005) (2.7322)
2min .251 (-1.382) (3.9841)
3min .176 (-1.737) (5.6818)
4min .124 (-2.087)and so on
5min .089 (-2.419)
6min .065 (-2.733)
7min .048 (-3.037)
8min .037 (-3.297)
9min .029 (-3.540)
10min .023 (-3.772)
I already did this prior to break, but I got some help. Now I don't remember how I got my numbers in L3 and L4. I put the numbers in parenthesis that I got w/my calculator, but that's the part I don't remember. I think I'm supposed to scroll up to highlight L3 next, but I really don't remember what I'm supposed to put.
By the way, I have a TI-83 plus. Thanks so much in advance.
To find certain data in the L3 and L4 columns using your TI-83 Plus calculator, follow these steps:
1. Enter the given data into the calculator. Assuming you have already entered the time values in L1 and the absorbance values in L2, you can proceed to the next steps.
2. Scroll up to the L3 column. To do this, press the [2nd] button followed by the [Stat] button. This will take you to the STATS menu.
3. Select "Edit". Press the [2] key to select "Edit" from the menu. This will open the data editor.
4. Enter the data for the ln(Abs) values in L3. Scroll to the first entry in L3 (which is likely empty) and enter -1.005 (-1.382 for the next entry, and so on). Press the [Enter] key after each value to move to the next cell.
5. Scroll up to the L4 column. To do this, press the [2nd] button followed by the [Stat] button. This will take you back to the STATS menu.
6. Select "Edit" again. Press the [2] key to select "Edit" from the menu. This will open the data editor.
7. Enter the data for the 1/Abs values in L4. Scroll to the first entry in L4 (which is likely empty) and enter 2.7322 (3.9841 for the next entry, and so on). Press the [Enter] key after each value to move to the next cell.
Once you have entered the data into L3 and L4, you can plot a graph to determine the order of the reaction. Here's how you can do that:
8. Exit the data editor. Press the [2nd] button followed by the [Mode] button to exit the data editor and go back to the calculator's home screen.
9. Enter the "Plot" menu. Press the [Y=] button to enter the "Y=" menu.
10. Enter the correct equations for L3 and L4. You need to specify which variables you want to use for plotting. For example, if you want to plot L3 on the y-axis against L1 on the x-axis, enter "L3" as the equation for one of the plots (e.g., Y1) and "L1" as the equation for the x-axis.
11. Turn on the plot. Press the key corresponding to the plot you want to turn on (e.g., [GRAPH] to turn on Y1). You should see the plot on the graph.
12. Adjust the window. If necessary, adjust the window settings by pressing the [Window] button. Make sure the graph shows all the relevant data points.
13. View the graph. Press the [Graph] button to view the plotted graph. It will show you the relationship between the variables, which will help you determine the order of the reaction.
Remember, in order to determine the order of the reaction, you need to analyze the shape of the graph and consider the behavior of the plotted data.