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If 50 ml of 0.2 M KOH is added to 40 ml ...

If 50 ml of 0.2 M KOH is added to 40 ml of 0.5 M HCOOH, the pH of the resulting solution is `(K_(a) = 1.8 xx 10^(-4))`

A

3.4

B

7.5

C

5.6

D

3.75

Text Solution

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Knowledge Check

  • If 50ml of 0.2 M KOH is added to 40 ml of 0.05 M HCOOH , the pH of the resulting solution is ( K_(a)=1.8xx10^(-4) )

    A
    `3.4`
    B
    `7.5`
    C
    `5.6`
    D
    `3.75`

  • If 40 ml of 0.2 M KOH is added to 160 ml of 0.1 M HCOOH [K_a= 2 xx 10^(-4)]. The pOH of the resulting solution is

    A
    3.4
    B
    3.7
    C
    7
    D
    10.3

  • 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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