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13 Dec 2019
6) the solutions in this experiment are observed interacting with visable light at a wavelenth of 530nm. explainwhy
530 nm is used as opposed to any other wavelength in thevisible
region.
7)in cells used in the absorbance measurement are accurately
calibrated to ensure that the pathlength is as indicated. ifa
student unknowingly measured the absorbance of solution A-Ein
0.95cm cell and then used a cell of 1.00 cm pathlength for
measurement of the unknown solutions absorbance, how wouldthis
affect the calculated percentage of aspirin in the unknown?
8) the molar absorpitivity for the asprin-ion complex may be determined from the Beer's law plot. what isits
value? show calculations.
9) if the iron solution was incorrectly diluted to 0.002M forthe
unknown,what would be the effect on the calculated percentof
aspirin in the tablet? explain
6) the solutions in this experiment are observed
interacting with visable light at a wavelenth of 530nm. explainwhy
530 nm is used as opposed to any other wavelength in thevisible
region.
7)in cells used in the absorbance measurement are accurately
calibrated to ensure that the pathlength is as indicated. ifa
student unknowingly measured the absorbance of solution A-Ein
0.95cm cell and then used a cell of 1.00 cm pathlength for
measurement of the unknown solutions absorbance, how wouldthis
affect the calculated percentage of aspirin in the unknown?
8) the molar absorpitivity for the asprin-ion
complex may be determined from the Beer's law plot. what isits
value? show calculations.
9) if the iron solution was incorrectly diluted to 0.002M forthe
unknown,what would be the effect on the calculated percentof
aspirin in the tablet? explain