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Calculate the pH of one molar ammonium f...

Calculate the pH of one molar ammonium formate solution. Given that `pK_a` for HCOOH = 3.8,`PK_b` for `NH_3` = 4.8.

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Hydrolysis of ammonium acetate is given by the equation as `HCOONH_4 +H_2O hArr HCOOH +NH_4 OH`
pH of the solution of a salt of weak acid and weak base `=1/2 [pK_w +PK_a -PK_b ]`
pH of 1M `HCOONH_4` solution`= 1/2 (14+3.8-4.8) = 6.5`.
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