Atomic Spectroscopy

Atomic Spectroscopy                           Suzanne Rakes Chemistry 2 Lab Dr. Seelbinder February 19, 2002          info                   The entropy in the optical rail chart shown above contains the plot points of atomic number 80 (series 1) and atomic number 36 (series 2) gentle wind readings in mm. and their wavelength in nm. The quicksilver and krypton wavelengths were found by estimating where the colour ins were on the spectrum and referring to the liberation that was prone up for the values. The pull back readings were taken from an average of the three or four-color bands on the continuum spectrum shown when feel at done the optical rail spectroscope. Shown beneath is a chart of the line readings and average of the colors that were seen when feel done the optical rail. Gaseous Mercury left hand (mm)          hit up (mm)          castigate (mm) Orange 8.5.         8.65         8.8 putting green 8         8.1         8.2 kingly 6         6.25         6.5 Gaseous Krypton Left (mm)         Average (mm)         Right (mm) Violet 6.2         6.35         6.5 Green 8         8.25         8.5 Orange 8.5         8.95         9 atomic number 1 Left (mm)         Average (mm)         Right (mm) Green 7.1         7.05         7 excitation 10         9.95         9.9 Violet 6.3         6.35         6.4 The rydberg unit Equation graph shown above shows the 1/n2 value and the 1/lambda values and then(prenominal ) given is the y equation. The 1/lambda is! the inverse of the Hydrogen wavelengths. The enthalpy wavelengths were found by putting the line readings into the mercury and krypton slope equations given from excel. (Calculations shown below) Calculations (Refer to charts and graphs shown above) Mercury y = 59.375x + 64.789 59.375         x 7.05mm. + 64.789 = 483.4nm. 59.375 x 9.95mm. + 64.789 = 656nm. 59.375         x 6.35mm. + 64.789 = 442nm. Krypton y = 60.942x + 46.972 60.492         x 7.05mm.+ 46.972 = 477nm. 60.492 x 9.95mm. + 46.972 = 653nm. 60.492         x 6.35mm. + 46.972 = 434nm. Average of wavelengths 480.2nm. 655nm. 438nm (Refer to Rydberg graph and chart shown above) Color         1/n2         1/lambda Red         1/9 = 0.111111111         1/655 E-9 = 1526717.56 Green         1/16 = 0.0625         1/480.2 E-9 = 2082465.64 Violet         1/25 = 0.04      Â Â Â Â 1/438 E-9 = 2283105.02 per centum fallacy = positive - theoretical / actual x nose candy = % 1.076414 -1.096776 / 1.076414 x 100 = 1.89% (about 2% erroneous belief) Discussion/Results         The percent error was about 2%. Our wavelength values for Krypton and Mercury were estimated fit in to our liberation of given wavelengths. They were very compressed to the actual wavelengths of Mercury and Krypton. This is cognise by looking at the percent error and sightedness how close it is. The slope equations obtained from Mercury and Krypton was employ to arrive the wavelengths for Hydrogen. This is also a reason we know the wavelengths were close to the actual wavelengths. You can also tell that this was a fortunate test by comparing the Rydberg Equation (-1.096776) to the equation given from excel calculations which was ?1.076414.         When looking at the light lamp through a square grid all of the colors of the spectr um were shown provided orangish. This could possib! ly be that the gas present in the fluorescent lamp gives off an orangish color and that could be why orange was not seen. then a normal light with disconsolate coverings were observed. The colors seen when looking through the grid are: dismal covering-all colors of spectrum shown, loss covering-all colors shown, yellow covering-green, yellow, red, slightly purple, grisly red covering- red, yellow, green, purple. watch over: Observations of the continuum spectrum are shown above in the dodge of Mercury, Krypton and Hydrogen. The bands of color observed are noted in this table. If you want to farm a full essay, order it on our website: OrderEssay.net

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