1) You are attempting to separate value from serine on a C18 column with a methanol:acetic acid mobile phase. You get the following profile:a) Label the two peaks (valine and serine) (2 points)b) Is this reverse phase or normal phase chromatography

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride

How does the attraction between particles affect the ability of a solvent to dissolve in a substance

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.