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Electrolysis and Electrolytes

17. In a cont...

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17. In a container, 1L of aqueous CH3COOH is present and pH of this solution is 3. Now 2g charcoal is added in this container and pH of CH3COOH solution become 4. the mass of CH3COOH adsorbed per gram of charcoal is

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Q. One gram of charcoal adsorbs

C H_{3} C O O H

100 mL

0.6 M

C H_{3} C O O H

aqueous solution to form a monolayer, and thereby the molarity of

C H_{3} C O O H

0.58

. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid. Surface area of charcoal per gram

= 3.0 \times 10^{2} m^{2}

N_{A} = 6 \times 10^{23}

Q. 1 g of charcoal adsorbs

C H_{3} C O O H

100 mL

0.6 M C H_{3} C O O H

aqueous solution to form a monolayer, and the molarity of

C H_{3} C O O H

0.58

in this process. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid.
Surface area of charcoal =

3.0 \times 10^{2} m^{2} / g

Q. One gram of charcoal adsorbs

C H_{3} C O O H

100 mL

0.6 M

C H_{3} C O O H

aqueous solution to form a monolayer, and thereby the molarity of

C H_{3} C O O H

0.58

. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid. Surface area of charcoal per gram

= 3.0 \times 10^{2} m^{2}

N_{A} = 6 \times 10^{23}

Q. Which of the following solutions when added to

1 L

0.1 M C H_{3} C O O H

solution will cause no change in either the degree of dissociation of

C H_{3} C O O H

p H

of the solution.

K_{a} = 1.8 \times 10^{4}

C H_{3} C O O H

?

Q. Dissociation constants of

C H_{3} C O O H

N H_{4} O H

in aqueous solution are

10^{- 5}

C H_{3} C O O H

3

. What will be the pH of

N H_{4} O H

?

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