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Q3. Predict whether benzoic acid or caffeine will come out of the C18-reverse phase column first at pH 2.
Q4. To prepare the calibration standard solutions, calculate how much of each stock solution of sodium benzoate and caffeine should be added to each of the 25 mL volumetric flasks (See the procedure).
Q5. What are the peak absorption wavelengths of sodium benzoate and caffeine, respectively?
Q3. Predict whether benzoic acid or caffeine will come out of the C18-reverse phase column first at pH 2.
Q4. To prepare the calibration standard solutions, calculate how much of each stock solution of sodium benzoate and caffeine should be added to each of the 25 mL volumetric flasks (See the procedure).
Q5. What are the peak absorption wavelengths of sodium benzoate and caffeine, respectively?
Irving HeathcoteLv2
17 Dec 2019
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