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Aqueous solution of HNO(3), KOH, CH(3)CO...

Aqueous solution of `HNO_(3), KOH, CH_(3)COOH and CH_(3)COONa` of identical concentration are provided. The pair (s) of solutions which form a buffer upon mixing is (are)

A

`HNO_(3) and CH_(3)COOH`

B

KOH and `CH_(3)COONa`

C

`HNO_(3) and CH_(3)COONa`

D

`CH_(3)COOH and CH_(3)COONa`

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Knowledge Check

  • Aqueous solutions of HNO_3 , KOH, CH_3COOH , CH_3COONa of identical concentrations are provided. The pairs of solutions which forms a buffer upon mixing is(are):

    A
    `HNO_3` and `CH_3COOH`
    B
    `KOH` and `CH_3COONa`
    C
    `HNO_3` and `CH_3COONa`
    D
    `CH_3COOH` and `CH_3COONa`

  • The pH of an aqueous solution of CH_3COONa of concentration C(M) is given by

    A
    `7-1/2 pK_a -1/2 log C`
    B
    `1/2 pK_w -1/2 pK_b +1/2 log C`
    C
    `1/2 pK_w -1/2 pK_b -1/2 log C`
    D
    `1/2pK_w +1/2 pK_b +1/2 log C`

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