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50 ml of 1 M oxalic acid is shaked with 0.5 g wood charcoal. The final concentration of the solution after adsorption is 0.5 M. What is the amount of oxalic acid absorbed per gram of carbon? (A) 3.15 g (B) 3.45 g (C) 6.30 g (D) None

      50 ml of 1 M oxalic acid is shaked with 0.5 g wood charcoal. The final concentration of the solution after adsorption is 0.5 M. What is the amount of oxalic acid absorbed per gram of carbon?


        (A)    3.15 g


        (B)    3.45 g


        (C)    6.30 g


 


(D)    None 

Grade:11

2 Answers

Amit Saxena
35 Points
7 years ago

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India VK
42 Points
7 years ago

D

 

Amount of acid in the soln to begin with = 50 * 1 = 50 mmol

At the end = 0.5 * 50 = 25 mmol

 

Adsorbed = 25 mmol = 25*90/1000 = 2.25 g

 

Adsorbed / gm or charcoal = 2.25/.5 = 4.5

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