Spectra - Therese Nguyen Equivalence Point Using...

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Therese Nguyen Equivalence Point Using Conductivity July 1, 2010 Abstract The visible light spectrum is approximately 750 – 400 nm. Hydrogen emission spectrum is viewed with a spectroscope and is analyzed to gain an understanding of the quantized nature of the hydrogen atom. In addition, the initial energy state is determined. Data Table 1 summarizes the distance from the slit to image, distance from slit to grating and distance between grating lines. Table 1. Spectrum Spectrum Distance from slit to image (a) Distance from slit to grating (b) Distance between grating lines 2.54 cm / 13,400 grating lines (d) Red 10 cm 28.5 1.895E-6 Green 7.5 28.5 1.895E-6 Violet 6.5 28.5 1.895E-6 Results ∆ E = - (2.178 * 10 -18 J) (1/n 2 final - 1/n 2 initial ) ∆ E = hc/λ 13,400 lines per inch Table 2. Initial energy state results Spectrum Distance from slit to image (a) Calculated wavelengths (m) Known wavelengths (nm) Energy State Initial Percent error (%) Red 10 cm 6.626E-7 650 3 .33 Green 7.5 4.83E-7
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Spectra - Therese Nguyen Equivalence Point Using...

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