A student prepares a 0.10MCoCl2 solution and determines the absorbance of the solution at various wavelengths using a spectrophotometer. A graph of the results is shown below. Identify the optional wavelength for absorbance.
A
300nm
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B
375nm
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C
410nm
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D
550nm
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Solution
The correct option is A300nm Optional wavelength is the minimum wavelength at which absorption starts. From the graph λ=300nm