Nitrite Lab W10

Nitrite Lab W10 - Chem 125 Name: Olivia Nixon Dr. Abel...

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Chem 125 Dr. Abel Name: Olivia Nixon Computer #: Partner Nitrite Ion Lab Report Sheet Lab Report Due at the beginning of lab in week 2 . Each person is to submit an individual UNIQUE report. You must turn in a typed hard copy of this report. If you work on your graphs together in class you may submit the same graphs, but all other work on this report should be your own. Part 1: Determination of λ max In the table below, record the results of your absorbance measurements for each wavelength you measured. Title this table (in the space below) and use units where appropriate. Absorbance of .5 ppm Nitrite Solution at Differing Wavelengths Wavelength (nm) Absorbance Wavelength (nm) Absorbance 500 .294 550 .567 510 .384 560 .543 520 .465 570 .481 530 .524 580 .380 540 .558 590 .252 max is 550 nm In the space below, insert your Excel graph you prepared in order to determine the wavelength of maximum absorbance for the nitrite-dye complex. See attached graph titled “Maximum Absorbance .5 ppm” Part 2: Determination of the Absorbance of Standard Nitrite Solutions In the table below, record the results of your absorbance measurements for each wavelength you measured as a function of concentration. Title this table (in the space below) and use units where appropriate. Absorbance of Nitrite Concentration in 550 nm Wavelength Nitrite Conc. (ppm) Absorbance Nitrite Conc. (ppm) Absorbance .2 .247 .65 .712 .35 .401 .80
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Nitrite Lab W10 - Chem 125 Name: Olivia Nixon Dr. Abel...

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