1.0.05g of Iron(III) Nitrate in a 50-ml beaker. increase 17 mL of distilled water to the beaker and incorporate with a agitate rod until the solid is completely dissolved.
2.Obtain another 50-mL beaker and score 0.05g of Chromium(III) Nitrate to the beaker. Then, add 17 mL of distilled water and swagger until the solid is dissolved.
3.Obtain a final 50-mL beaker and add 0.05 grams of the dark substance to the beaker. Add 17 mL of distilled water and mix with a stir bar until the solid is completely dissolved. enter the unknown number of the solid in the lab report.
4.Go to your Mea certain(predicate)Net station and turn it on by wringing ON/OFF.
5.Once the station has been activated, press the MAIN MENU firing followed by the F5 for a Spectroscopy, and finally F2 for Absorbance. Next, press the SETUP clit to establish parameters for the absorbance. Press F1 to set the limits and use the arrow keys to tend from the X to the Y axis vertebra or from max to min.
6.For this experiment, absorbance go away be recorded on the Y-axis. Set the maximum military capability for 2.0 and press bring on in. Leave the minimum at 0. Press ENTER again.
7.The Wavelength will be recorded on the X axis in nanometers. Leave the settings for the maximum and minimum set at the default values.
Since you will be using a UV-visible computer address the min and max wavelengths will be between 250nm to 850nm. To remove these values, press DISPLAY.
8.Next add 3.00 mL of the Iron(III) Nitrate root made in step one to a cuvette. Do the same for the Chromium(III) Nitrate solution and the unknown solution. Make sure the cuvettes are at least ¾ full to ensure data collected is accurate. Next, add 3.00 mL of water to a fourthly cuvette. Also, pay back sure the outside of the cuvettes are dry.
9.Go to the spectrophotometer and make sure the toggle switch is set to ON. Press get off NUMBER and enter the number of your station and then press ENTER. There will be a Ready to glance over message after ENTER is pressed.
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