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JEE Advanced2018ChemistryIonic EquilibriumActual

The solubility of a salt of weak acid AB at pH 3 is Y × 10 - 3 mol L - 1 . The value of Y is ____. (Given that the value of solubility product of AB K sp = 2 × 10 - 10 , and the value of ionization constant of HB Ka = 1 × 10 - 8 )

Correct answer

0

Step-by-step solution

S = K sp H + K a + 1 = 2 × 10 - 10 10 - 3 10 - 8 + 1 ≃ 2 × 10 - 5 = 4 .47 × 10 - 3 M .

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