3 click on layout and then axis title to label the x

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Principles of Instrumental Analysis
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Chapter 14 / Exercise 14-10
Principles of Instrumental Analysis
Skoog
Expert Verified
3. Click on Layout and then Axis Title to label the x- and y-axes. Click on the Title on the graph and write your title. 4. To add a trendline (called a best fit line in a hand drawn graph), go to Layout and click on trendline, then linear trendline. 5. To print, move the graph to be either next to or under the table. Make sure you click on the Excel sheet so that the blue box around the graph is not longer there or you will print only the graph. Your Turn Use the data from the previous Your Turn exercise on Absorbance of protein concentration to make a scatter plot with a trendline in Excel. Be sure to label your table columns and your axes and title your graph. Print out and attach to your lab report. Your Turn 1. Look in your lab procedure and write the formula you will use for each of the following: a) Part I: Making 0.01 M solution of KMnO4using the dry reagent b) Part III: Making parallel dilutions of KMnO4c) Part IV: Making serial dilutions of KMnO42. Order the following steps for setting a Spec 20 to zero. A. Press mode to change to Absorbance. B. With nothing in the chamber, set to 0 using %T knob. C. Set wavelength using wavelength knob. D. Set Absorbance to 0 using 0 A knob. E. Wipe blank cuvette with a Kimwipe and place in the chamber. F. Make sure Spec 20 is warmed up mode is on Transmittance First ______ then ______ then ______ then _____ then _____ and finally ______
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Principles of Instrumental Analysis
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Chapter 14 / Exercise 14-10
Principles of Instrumental Analysis
Skoog
Expert Verified
ACC BIOL 1406 Lab Manual Round Rock Revision Lab 2 Page 12 Lab Procedures Safety Precautions:1.Potassium permanganate has a health hazard rating of 2 and a reactivity rating of 3.2. You must wear approved safety eyewear and gloves during this entire lab, avoid breathing dust, and notify your instructor immediately if any spills occur. 3. Discard any potassium permanganate solutions in the hazardous waste containers provided. Lab Notes:All members of the lab group will do parts I and II together. You will split up so half the lab group does the parallel dilution and the other half lab group does the serial dilution. Exchange data and notes at the end of lab. I. Prepare a solution of a specific molarity using a solid solute NOTES1. The formula weight of potassium permanganate (KMnO4) is 158.04 g/mole. Before coming to lab, calculate the weight of KMnO4needed to prepare 80 mL of a 0.01 M solution. and write it here: g KMnO4needed _____________ 2. Weigh out the calculated weight of KMnO4using the technique in the Prelab Discussion. Record the exact amount weighed and who did it. 3. Pour approximately 40 mL of deionized water (dH2O) into a clean 100 mL beaker. Add a small stir bar and start stirring. 4. Slowly pour the weighed KMnO4into the beaker using a wash bottle of water to remove all potassium permanganate from the weigh boat. Stir until dissolved. (It’s a dark solution,so you may wish to hold the beaker up to the light and look for crystals on the bottom of the beaker.

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