Verified Solution • 2025–26 Session moderate

QJEEM22Che3ea: JEE Main 2022 Chemistry - Class 12 JEEM22Che3ea Solution: When 200 mL of 0.2 M acetic acid is shaken with 0.6 g of wood…

When 200 mL of 0.2 M acetic acid is shaken with 0.6 g of wood charcoal, the final concentration of acetic acid after adsorption is 0.1 M. The mass of acetic acid adsorbed per gram of carbon is ____________ g.

Step-by-Step Verified Solution

Mass of wood charcoal =0.6 g=0.6 \mathrm{~g}

Initial moles of acetic acid =0.2×0.2=0.04=0.2 \times 0.2=0.04

Final moles of acetic acid =0.1×0.2=0.02\quad=0.1 \times 0.2=0.02

Moles of acetic acid adsorbed =0.04−0.02=0.02=0.04-0.02 = 0.02

Mass of acetic acid adsorbed per gm of charcoal

=0.02×600.6=2.0 g=\frac{0.02 \times 60}{0.6}=2.0 \mathrm{~g}

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