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
Radhika Batra , 11 Years ago
Grade 11
2 Answers
Amit Saxena
Last Activity: 11 Years ago
India VK
Last Activity: 11 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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