IV. A student isolated chemical A and B using column chromatography based on the TLC result sh below. uny irigim Inavloz 16dw alqmsz nwondou os 1ot steb validuloz gniworlot art no bezs8 (to E) Syriw bns nwordin Solvent front Origin B 4.0 cm 3.5 cm moon 2.5 cm indgil2 1.5 cm m2 0.5 cm 0 1st fraction O od blow c. Among A and B, which one dissolves in water better? 2nd 3rd fraction ( ) a. Show the work to calculate the Re values for each of the compounds, A and B. (ZS 2070 ) vlozen b. Fill in the blank parentheses above with A or B to show what is in each Erlenmeyer flask. (2

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