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Question
A sample of blue copper (II) sulfate is analyzed using a spectrophotometer (or colorimeter). When analyzed by four different wavelengths, the solution obtain the following absorbance data:
∙425 nm=0.12
∙480 nm=0.25
∙510 nm=0.98
∙610 nm=0.11
What is the optimum wavelength(s) to be used for analysis?
A sample of blue copper (II) sulfate is analyzed using a spectrophotometer (or colorimeter). When analyzed by four different wavelengths, the solution obtain the following absorbance data:
∙425 nm=0.12
∙480 nm=0.25
∙510 nm=0.98
∙610 nm=0.11
What is the optimum wavelength(s) to be used for analysis?
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Solution
The correct option is B 425 nm and 610 nm
When the solution of copper(II) sulfate was analyzed using a spectrometer for different wavelengths, we can see that absorbance is almost similar for wavelength corresponding to 425 nm and 610 nm.Thus,425 nm - 0.12610 nm - 0.11 Both are almost similar.Therefore option A.
When the solution of copper(II) sulfate was analyzed using a spectrometer for different wavelengths, we can see that absorbance is almost similar for wavelength corresponding to 425 nm and 610 nm.
Thus,
425 nm - 0.12
610 nm - 0.11 Both are almost similar.
Therefore option A.
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