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How would fingerprints on a cuvette during a visible spectrometry lab affect the concentration reading? A Concentration would be lower, since more light is being reflected and not detected by the spectrometry light sensor. B Concentration would be higher since more light is being reflected or absorbed, increasing the absorbance reading. C Concentration will stay the same since the fingerprints will only deflect the light slightly and not enough to affect the absorbance measurements. D Concentration will be increase since more light is absorbed by the solution, resulting in a decrease in the absorbance measurement.

How would fingerprints on a cuvette during a visible spectrometry lab affect the concentration reading?

A

Concentration would be lower, since more light is being reflected and not detected by the spectrometry light sensor.

B

Concentration would be higher since more light is being reflected or absorbed, increasing the absorbance reading.

C

Concentration will stay the same since the fingerprints will only deflect the light slightly and not enough to affect the absorbance measurements.

D

Concentration will be increase since more light is absorbed by the solution, resulting in a decrease in the absorbance measurement.

 

Grade:12th pass

1 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
8 months ago
Fingerprints on a cuvette would affect absorbance and concentration calculation by the fact that fingerprints absorb and scatter light slightly, despite not be readily visible. A cuvette (with fingerprints on it) will give a slightly higher absorbance reading and the measured concentration will be significantly higher than the actual concentration.Hence the required answer is- (B)Concentration would be higher since more light is being reflected or absorbed, increasing the absorbance reading.

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