A student prepared five solutions of Cuso, with different concentrations, and then filled five cuvettes, each containing one of the solutions. The cuvettes were placed in a spectrophotometer set to the appropriate wavelength for maximum absorbance. The absorbance of each solution was measured and recorded. The student plotted absorbance versus concentration, as shown in the figure above. Which of the following is the most likely explanation for the variance of the data point for the 0.600 M Cuso, solution? 1130 (A) The cuvette into which the 0.600 M solution was placed has some water W droplets inside. (B) The cuvette into which the 0.600 M solution was placed was filled slightly more than the other cuvettes. (C) The wavelength setting was accidentally moved away from that of maximum absorbance. (D) The cuvette used for the 0.600 M solution had not been wiped clean before being put in the spectrophotometer.

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13-12-2022
Chemistry

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A student prepared five solutions of Cuso, with different concentrations, and then filled five cuvettes, each containing one of the solutions. The cuvettes were placed in a spectrophotometer set to the appropriate wavelength for maximum absorbance. The absorbance of each solution was measured and recorded. The student plotted absorbance versus concentration, as shown in the figure above. Which of the following is the most likely explanation for the variance of the data point for the 0.600 M Cuso, solution? 1130 (A) The cuvette into which the 0.600 M solution was placed has some water W droplets inside. (B) The cuvette into which the 0.600 M solution was placed was filled slightly more than the other cuvettes. (C) The wavelength setting was accidentally moved away from that of maximum absorbance. (D) The cuvette used for the 0.600 M solution had not been wiped clean before being put in the spectrophotometer.

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RajeevKumarBag RajeevKumarBag · Answer 1 · 2022-12-19T04:54:04+01:00

The cuvette used for the 0.600 M solution had not been wiped clean before being put in the spectrophotometer.

What is wavelentgh?

Wavelength can be defined as the distance between two successive crests or throughs of any wave.

absorbence in spectral photometer is there are 2 main factors which affect the concentration absorbent curve for a particular spectrum analysis. First factor is concentration of sample introduced in incand. Second is part lengthnthe higher concentration higher its absorbent. This is because, when the concentration increases there will be the more solute molecule in the system, so it becomingly absorbed and it cast increasing. The absorbents next is a path length. Absorbency is directly proportional to the path length when the path length increases, the light can travel more distance and hence it will interact with the greater number of molecules and hence absorbent increases. So the correct answer or correct option is d. This is because, if we do not wipe out the or clean the quete beforehand introducing the sample solution, impintive will mix with the sample and it will change the concentration according to the question.

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