CHM 114 Report Sheet

Spectrophotometry and the Beer-Lambert Law

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Determination of maximum wavelength

Wavelength (nm)
 %T
 Absorbance
400
425
450
475
500
525
550
575
600
625
650

Maximum wavelength  nm

Standard Absorbance data

Solution Aspirin
Concentration
(mg/mL)
 Average Absorbance (A)
Blank
A
B
C
D
E

Standard Curve Equation

y =
   x
 +

R2 =

Unknown


Average A
 Aprinin Concentration
(mg/mL)
Unknown

Aspirin

Brand of aspirin: 

Experiemntal aspirin content (mg/tablet)
Accepted aspirin content (mg/tablet)
% error

Report Preparation

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