Answer:
Answer is in the explanation
Explanation:
A spectrophotometer is an instrument used in chemistry to measure the absorbance of a sample in an unique wavelength of light showing a complete spectrum.
When you measure in a spectrophotometer a green drink sample you will see a spectrum with just one peak if the sample contains just green dye molecules and a spectrum with two peaks if the sample contains a combination of blue and yellow dye molecules.
if the green drink sample has a wavelength of maximum absorption close to 400 nm or close to 800 nm then it contains green dye molecules.
A spectrophotometer is an instrument that is used to measure the concentration of a substance as a function of absorbance of light of a specific wavelength. Typically, the spectrophotometer measures wavelength in the visible and ultraviolet region of the spectrum.
Apart from it quantitative application, the spectrophotometer can also be used for qualitative purposes in the determination of the composition of compounds.
This is because, compounds absorb at specific wavelengths depending on their color. A green substance absorbs around 400 nm as well as near 800 nm. A yellow substance absorbs around 420-430 nm of light. A blue substance absorbs around 630 nm.
Hence, if the green drink sample has a wavelength of maximum absorption close to 400 nm or close to 800 nm rather than two different peaks corresponding to yellow and blue light, we can conclude that the drink sample contains green dye molecules rather than a combination of both blue and yellow dye molecules.
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