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Synthesis of Ethers

Which of the ...

Question

Which of the following solutions when added to $1 L$ of a $0.1 M C H_{3} C O O H$ solution will cause no change in either the degree of dissociation of $C H_{3} C O O H$ or the $p H$ of the solution. $K_{a} = 1.8 \times 10^{4}$ for $C H_{3} C O O H$ ?

3 m M H C O O H (K_{a} = 6 \times 10^{4})

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0.1 M C H_{3} C O O N a

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1.34 m M H C l

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0.1 M C H_{3} C O O H

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Solution

The correct option is A $3 m M H C O O H (K_{a} = 6 \times 10^{4})$
Addition of $C H_{3} C O O H$ and $H C l$ will change the $p H$ . Adding the $C H_{3} C O O N a$ will form a buffer solution and hence change the $p H$ . Here, addition of $H C O O H$ will not change degree of dissociation or $p H$ of the solution.

Suggest Corrections

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C H_{3} C O O H

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