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(i) Predict if the aqueous solutions of ...

(i) Predict if the aqueous solutions of the following salts are neutral acidic or basic,`NaCl,KBr,NaCN,NH_(4)NO_(3),NaNO_(3)`and `KF`.Explain.
(ii) A `0.02M` solution of pyridinium hystochloride has `pH=3.44` calcuate ionization constant of pyridine (antiolog `0.18=1.5`) (iii) The ionization constant of nitrous acid is `4.5xx10^(-4)` .Calculate the `pH` of `0.04M` solution nitrite solution and also its degree of hydrolysis `(log 4.5=0.65,log4=0.6)`

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