17. A solution containing 0.525MNaNO3 exhibits 0.34 absorbance in a 3.00-cm cell at 460 nm. Calculate the molar absorptivity of NaNO3 in a unit of U cm. mg at this wavelength using Beer's Law. A. 0.215cm^-1mol^-1L B. 16.81cm^-1mol^-1L C. 0.515cm^-1mol^-1L D. 1.681cm^-1mol^-1L

Question

17. A solution containing 0.525MNaNO3 exhibits 0.34 absorbance in a 3.00-cm cell at 460 nm. Calculate the molar absorptivity of NaNO3 in a unit of U cm. mg at this wavelength using Beer's Law. A. 0.215cm^-1mol^-1L B. 16.81cm^-1mol^-1L C. 0.515cm^-1mol^-1L D. 1.681cm^-1mol^-1L

Answer 1

To calculate the molar absorptivity of NaNO3 using Beer's Law, we can use the following formula:ε = A / (c * l)Where:ε = molar absorptivity (in units of L·mol^-1·cm^-1)A = absorbancec = concentration (in units of mol·L^-1)l = path length (in units of cm)Given information:- Absorbance (A) = 0.34- Concentration (c) = 0.525 M- Path length (l) = 3.00 cmSubstituting the given values into the formula:ε = 0.34 / (0.525 * 3.00)ε = 0.215 cm^-1 mol^-1 LTherefore, the correct answer is A.

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Soru

17. A solution containing 0.525MNaNO3 exhibits 0.34 absorbance in a 3.00-cm cell at 460 nm. Calculate the molar absorptivity of NaNO3 in a unit of U cm. mg at this wavelength using Beer's Law. A. 0.215cm^-1mol^-1L B. 16.81cm^-1mol^-1L C. 0.515cm^-1mol^-1L D. 1.681cm^-1mol^-1L

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