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When a 20 mL of 0.08 M weak base BOH is ...

When a 20 mL of 0.08 M weak base BOH is titrated with 0.08 M HCl, the pH of the solution at the end point is 5. What will be the pOH if 10 mL of 0.04 M NaOH is added to the resulting solution?
`[Given : log 2=0.30 and log 3=0.48]`

A

`5.40`

B

`5.88`

C

`4.92`

D

None of these

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Knowledge Check

  • When a 20 ml of 0.08 M weak base BOH is titrated with 0.08 M HCl, the pH of the solution at the end point is 5. What will be the pOH if 10 ml of 0.04M NaOH is added to the resulting solution?

    A
    `5.40`
    B
    `5.88`
    C
    `4.92`
    D
    NOTA

  • When a 40 mL of a 0.1 M weak base in titrated with 0.16 M HCl, the pH of the solution at the end point is 5.23. What will be the pH if 15 mL of 0.12 M NaOH is added to the resulting solution.

    A
    2.861
    B
    9.168
    C
    7.168
    D
    5.816

  • 50 mL of 0.1 M HCl and 50 mL of 2.0 M NaOH are mixed. The pH of the resulting solution is

    A
    `1.30`
    B
    `4.2`
    C
    `12.70`
    D
    `11.70`

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