Chemistry, 28.11.2019 07:31 oneicyahdaley10
(1.) using beer's law, how will the absorbance measured for the solutions change as the concentration of aspirin in solutions increase?
(2.) in an experiment, the beer’s law plot resulted in the following relationship between absorbance and concentration of asa, y = 1061.5x, where y is absorbance and x is the concentration. if the absorbance of a sample solution prepared from an aspirin tablet is 0.402, calculate the concentration of asa in the solution in m.
(3.) if the above solution was prepared by taking 10 ml of stock solution and diluting it to 100 ml, what is the concentration of the stock solution?
(4.) this stock solution was prepared as follows: an aspirin tablet was transferred to an erlenmeyer flask and reacted with naoh. the resulting solution was transferred to a 250 ml volumetric flask and the volume made up to 250 ml. calculate the mass of aspirin in the tablet based on the concentration of aspirin in the stock solution.
Answers: 2
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(1.) using beer's law, how will the absorbance measured for the solutions change as the concentratio...
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