Question: Prelab #6 1) What is petroleum ether (you may have to look this up- do NOT quote an online source…



Prelab #6 1) What is petroleum ether (you may have to look this up- do NOT quote an online source, but phrase it in your own words!)? 2) Why do the main pigment molecules enter the petroleum ether in the sepratory funnel? 3) Why do you want to make your spot of material as small and dark as possible? 4) Why do some pigments move faster up the paper than other pigments? 5) Why does the color of your pigment not match up to the absorbance maxima you see in the spectrophotometer?

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Prelab #6 1) What is petroleum ether (you may have to look this up- do NOT quote an online source, but phrase it in your own words!)? 2) Why do the main pigment molecules enter the petroleum ether in the sepratory funnel? 3) Why do you want to make your spot of material as small and dark as possible? 4) Why do some pigments move faster up the paper than other pigments? 5) Why does the color of your pigment not match up to the absorbance maxima you see in the spectrophotometer?

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