Cu Absorbance 1 Absorbance 2 Absorbance 3 Mean + SD standard (ppm) 0.0522 0.1013 1 0.0521 0.0520 0.1012 2 0.1011 3 0.1576 0.1578 0.1577 4 0.2119 0.2120 0.2121 5 0.2688 0.2681 0.2685 Unknown Absorbance 1 Absorbance 2 Absorbance 3 Mean + SD sample Water 0.1649 0.1648 0.1701 sample 1 (1:10 dilution) Cr Absorbance 1 Absorbance 2 Absorbance 3 Mean + SD standard (ppm) 1 0.0420 0.0419 0.0778 0.0425 2 0.0780 0.0779 3 0.1040 0.1043 0.1041 4 0.1368 0.1369 0.1372 0.1646 0.1647 0.1649 Unknown Absorbance 1 Absorbance 2 Absorbance 3 Mean + SD sample Tap Water sample 1 (1:20 dilution) 0.0488 0.0489 0.0501

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Q: 4. When plotting a standard curve in absorption spectrophotometry, one uses Abs values instead of %T…

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A: Flame Atomic Absorption Spectroscopy (FAAS)

Q: The extinction coefficient for FD&C Blue Dye #1 is 138,500 cm-L/mol at 630 nm. A chemist collected…

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Q: In very high resolution spectra of HCl, each one of the narrow lines observed is split into two…

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Q: An impurity in water has an extinction coefficient of 3.45 * 103 M-1 cm-1 at 280 nm, its absorption…

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Q: a.) Construct the absorption spectra of tetraaquosalicylatoiron (III) complex ion.

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A:

Q: Based on the calibration curve, what is the molar concentration for a solution with a measured…

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Q: (A) Calculate the wavelength in nm of an emission line of cadmium with a frequency of 1.311 x 1015…

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Q: a) In terms of spectral shape, how are atomic spectra different from molecular spectra? What is the…

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Q: A 20.00 mL sample of urine is spiked with 1.00 mL of 300. ppb Cu²+ and this mixture gives a response…

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Q: Briefly explain why it is NOT accurate to calculate the concentration of a sample whose absorbance…

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Q: Review Beer's Law. absorbance of 0.75 at 660 nm. An unknown solution of the same metal ion, on the…

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Q: In Section 6.2d, we saw that the pK, of an acid is equal to the pH of the solution at which half the…

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Q: A solution in part B initially contains (4.0800x10^-4) molar SCN" and (2.850x10^-3) molar Fe3+ This…

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Q: Flame Atomic Absorption Spectroscopy (FAAS) method is selected due to its wide applicability for…

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