- Results The Absorption Measurements For The Solutions At Different Wavelengths Were Measured And Tabulated Determine Th 1 (59.7 KiB) Viewed 55 times
- Results The Absorption Measurements For The Solutions At Different Wavelengths Were Measured And Tabulated Determine Th 2 (48.68 KiB) Viewed 55 times
Title
Title
Abstract
Introduction
Experimental Procedure
Results
Discussion
This is a two paragraph section. First paragraph will relate the findings that you have found in doing your experiment. The second paragraph will be a short paragraph on sources of error or confirmation of accurate findings.
Conclusion
This section should be one paragraph which answers the following questions:(i) what do you results tell you about the experiment?(ii) what did you learn from completing the experiment?(iii) were your aims achieved?
This section should be one paragraph which answers the following questions:
(i) what do you results tell you about the experiment?
(ii) what did you learn from completing the experiment?
(iii) were your aims achieved?
Reference
List all references used to compile your report. Do not list websites, only textbooks and journal articles. And Do not post URL links.
List all references used to compile your report. Do not list websites, only textbooks and journal articles. And Do not post URL links.
Thank you.
Results The absorption measurements for the solutions at different wavelengths were measured and tabulated. Determine the corrected absorbances (Y) and tabulate the data. Draw a graph of Y versus mole fraction of en (X) for each wavelength. The peaks of these graphs should be in agreement with specific mole ratios and thus indicate the formulae of the complexes. From the value of X at every maximum, the value of n for [Ni(H20)6-2n(en)n]**can be determined through the following equation: n = Xmax/(1-Xmax). TABLE 1. UNCORRECTED ABSORBANCE MEASUREMENTS 520 nm 550 nm 580 nm 640 nm х Abs Abs Abs Abs 0.0 0.070 0.079 0.122 0.295 0.1 0.092 0.095 0.172 0.345 0.2 0.103 0.120 0.210 0.400 0.3 0.111 0.150 0.270 0.432 0.4 0.121 0.190 0.300 0.465 0.5 0.166 0.236 0.365 0.480 0.6 0.235 0.306 0.420 0.422 0.7 0.366 0.440 0.444 0.288 0.8 0.347 0.324 0.305 0.130 0.9 0.189 0.195 0.148 0.059 1.0 0.020 0.015 0.012 0.005
2. SECTION A: THE PRACTICAL REPORT 1. Write a complete practical report (See Section 9 REPORT FORMAT) for this assignment based on the results presented above. . Draw a separate graph of Y versus mole fraction of en (X) for each wavelength. The peaks of these graphs should be in agreement with specific mole ratios and thus indicate the formulae of the complexes. From the value of Xmax, the value of n for the complexes [Ni(H20)6-20(en),]2* can be determined using the equation: n = Xmax/(1-Xmax) Reminder. (a) Give one sample calculation for determination of Y and show all calculations for the determination of n. (b) Indicate the position of Xmax on each graph. 3. Under Results tabulate the Xmax at each wavelength, together with the calculated values of n and the formulae of the Nill complexes present in solution. If you do not obtain values of n=1, 2 and 3 from the given data, you need to provide a reasonable explanation, in the Discussion Section of your report, why the complex with either n=1, 2 or 3 was not formed.