Q.
About 50 mL of 1 M oxalic acid is shaken with 0.5 g of wood charcoal. The final concentration of the solution after adsorption is 0.5 M. The amount of oxalic acid absorbed per gram of charcoal is:
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a
3.45 g
b
3.15 g
c
6.30 g
d
None of these
answer is C.
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Detailed Solution
V1M1=V2M250×1=0.5×V2V2=100ml0.5=x126×1000100x=6.3 gms
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