Ten Erlenmeyer flasks were filled with $300ml$ of solution containing about $525m\frac{g}{L}$ of pesticide. The flasks were dosed with various weights of powdered activated carbon. Samples taken from flasks filtered to remove carbon and pesticide in filtrate was analyzed after equilibrium conditions were reached.

a$)$ Determine the relationship of adsorption with pesticide concentration $($i$.$e$.$ which isotherm gives a better fit to the data provided?$).(20$ points$)$

b$)$ Using isotherm found in part $($a$),$ determine the mass of activated carbon in batch process to remove $90\%$ of pesticide from $10mL$ of water with $325m\frac{g}{L}$ pesticide initial concentration. $(20$ points$)$

$\backslash$table$[[$Flask #$,1,2,3,4,5,6,7,8],[\backslash$table$[[$Pesticide$],[$equilibrium conc$],[(\frac{g}{L})$