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p^(I) of H(3)overset(o+)(N)-CH(2)-COOK i...

`p^(I)` of `H_(3)overset(o+)(N)-CH_(2)-COOK` is 5
`H_(3)overset(o+)(N)CH_(2)COOH hArr H_(2)NCH_(2)COO^(-)+H^(+)K_(a)=10^(-4)`
`H_(2)overset(o+)(N)CH_(2)COO^(-)hArr H_(2)NCH_(2)COO^(-)+H^(+)K_(a)=10^(-X)` What is x ?

A

`x+y`

B

` (x+y)//2`

C

` (x+y)^(1//2)`

D

` (x+y)^(1//3)`

Text Solution

Verified by Experts

The correct Answer is:
B
` NaH_2 PO_3 ` is amphiprotic salt
` pH= ( pK_1 + pK_2)/( 2 ) =(x+y)/(2) `
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