When a small amount of HCI is added to a...

When a small amount of HCI is added to a buffer solution of acetic acid and sodium acetate

pH increases

`[H^+]` decreases

Dissociation of acetic acid decreases

`[CH_3COO^-]` increases

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If NaOH is added to a solution of acetic acid

1xx10^(-3) mole of HCl is added to a buffer solution made up of 0.01 M acetic acid and 0.01 M sodium acetate. The final pH of the buffer will be (given, pK_a of acetic acid is 4.75 at 25^@ C)

STATEMENT-1 : When a small amount of strong acid is added to a buffer solution, its pH value does not change signific antly STATEMENT-2 : Buffer action of the buffer sloution resist the changee in pH when small amount of acid is added to it

Choose the correct set of True/Fasle for following statements: (i) Silver chloride is more soluble in very concentrated sodium chloride solution than in pure water. (ii) The pH of a buffer solution does not change on addition of small amount of an acid or a base. (iii) Addition of NH_(4)Cl does not affect the pH of a solution of NH_(4)OH (iv) Degree of hydrolysis of ammonium acetate does not depend upon the concentration of ammonium acetate solution. (v) A mixture of acetic acid and sodium acetate can act as buffer solution.

The pH of a buffer solution containing equal moles of acetic acid and sodium acetate is 4.8. (pK_(a) of acetic acid is 4.8) Statement 2: The ionic product of water at 25^@C is 10^(-14)mol^(2)L^(-2) .

A : pH of equimolar solution of NH_4 CI and NH_4OH does not change when small amount of HCI is added to it . R : pOH of above solution is equal to pK_b of the buffer.

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