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What is the pH of a salt which was produ...

What is the pH of a salt which was produced by a strong acid and a strong base ?

Text Solution

Verified by Experts

The correct Answer is:
A-Q; B-P; C-R; D-S
Basic buffer ` to pOH =pKb+ log ""(S)/(B) `
` rArr pH =(pK_a) +log ""( B)/(S) ` acid buffer ` to pH =pK_a +log ""(S)/(A) `
`WA + SB rArr ` anion hydrolysis
`rArr pH =7+ ((pKa+ logc )/( 2))`
` WB+SA rArr ` cation hydrolysis
` rArr pH =7- ((pK_b+log c)/( 2))`
`WB +SA rArr ` cation hydrolysis
` rArr pH = 7- ((pK_b+log c)/(2))`
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Knowledge Check

  • Aniline is a strong base in

    A
    `H_2O `
    B
    ` NaOH`
    C
    `CS_2`
    D
    `HCl`

  • Given that the data for neutralization of a weak acid (HA) and strong acid with a strong base is: HA +OH^(-) rArr A^(-) + H_(2)O: DeltaH = -41.80kJ , H^(+) + OH^(-) rArr H_(2)O, Delta H= -55.90kJ The enthalpy of dissociation of weak acid would be

    A
    `-97.20kJ`
    B
    `+97.70kJ`
    C
    `-14.10kJ`
    D
    14.10kJ

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