The following questions regard the chromatograms shown below: Which column gives a greater selectivity factor for compound X and compound Y? Explain your answer.

Question 7 In the Thermo Fisher application note on lon Chromatography (Lesson 4), a method is described on the second page. What mobile phase is used in the beginning of the method? O 10 mM KOH O 10 mM sodium carbonate O 10 ug/L bromate O 1000 ug/L NaF Question 8 The method discussed in the Thermo Fisher application note on lon Chromatography (Lesson 4) is an example of anion exchange chromatography. O True O False

QUESTION 5 In a chromatographic separation using a polar stationary phase and a mobile phase composed of 60% hexane and 40% ethyl acetate, two compounds, benzene (peak A) and toluene (peak B), are eluted. The width of peak A at its base is 1.2 min, the width of peak B at its base is 1.3 min, and the retention time of peak A is 5.2 min and peak B is 3.5 min. What is the resolution (Rs) between these two peaks and is it acceptable? R = 1.36. It is not an acceptable resolution. R = 0.74. It is an acceptable resolution. R = 1.36. It is an acceptable resolution. R = 0.74. It is not an acceptable resolution.

I would need help getting a example/drawing and explanation of each words: Aliquot Analyte Aqueous Calibration curve Composition sample Decant