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  • Answer please! Which one of the following pairs of solution is not an acidic buffer?

Which one of the following pairs of solution is not an acidic buffer?

  • Option 1)

    HClO_{4}\ and\ NaClO_{4}

  • Option 2)

    CH_3COOH\ and\ CH_3COONa

  • Option 3)

    H_2CO_3\ and\ Na_2CO_3

  • Option 4)

    H_3PO_4\ and\ Na_3PO_4

 

Answers (1)

 

Law of Chemical equilibrium -

At a given temperature, the product of concentration of the reaction products raised to the respective stoichiometric coefficient in the balanced chemical equation divided by the product of concentration of the reactants raised to their individual stoichiometric coefficients has a constant value.

- wherein

aA+bB\rightleftharpoons cC+dD


K_{c}=\frac{[C]^{c\:[D]^{d}}}{[A]^{a}\:[B]^{b}}

[A],\:[B],\:[C]\:[D]

are equilibrium concentration

 

 Acidic Buffer is a mixture of a weak acid and its salt with a strong base. HClO4 is a strong acid.

 


Option 1)

HClO_{4}\ and\ NaClO_{4}

correct

Option 2)

CH_3COOH\ and\ CH_3COONa

incorrect

Option 3)

H_2CO_3\ and\ Na_2CO_3

incorrect

Option 4)

H_3PO_4\ and\ Na_3PO_4

incorrect

Posted by

Vakul

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