Calculate the Kb of hydrazine, if pH of ...

Calculate the `K_b` of hydrazine, if pH of `4 xx 10^(-3)` M hydrazine is 9.7.

Verified by Experts

`pOH -pH =14-9.7 =4.3`
`pOH =(pk_b- log C)/(2) `
` 4.3 =(pK_b - log (4 xx 10^(-3)))/(2 ) implies pk_a = 6.2 `
` k_b =10^(-6.2 ) = 6.30xx 10^(-7)`

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