100 mL of 0.3 M acetic acid is shaken with 0.8 g of wood charcoal. The final concentration of acetic acid in the solution after adsorption is 0.125…

$\displaystyle 100$ mL of $\displaystyle 0.3$ M acetic acid is shaken with $\displaystyle 0.8$ g of wood charcoal. The final concentration of acetic acid in the solution after adsorption is $\displaystyle 0.125$ M. The mass of acetic acid adsorbed per gram of carbon is \_\_\_\_ $\displaystyle \times 10^{-4} \mathrm{~g}$. (Given : Molar mass of acetic acid $\displaystyle =60 \mathrm{~g} \mathrm{~mol}^{-1}$ )