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Equivalent conductance of saturated BaSO4 is 400 ohm-1 cm2 eqvt-1 and specific conductance is 8 x 10-5 ohm-1 cm-1. The ksp BaSO4 is-(a) 4 x 10-8 M2(b) 10-8 M2(c) 2 x 10-4 M2(d) 10-4 M2 |
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Answer» Answer is (b) 10-8 M2 Answer is (b) 10-8 M2 Given :- equivalent conductance = 400 Ω-1 cm2 eq-1 conductance = 8 x 10-5 Ω-1 cm-1 We know S = \(\frac{∧\times1000}{∧_{eq}}\) Where ∧ is conductance, ∧eq is equivalent conductance So, S = 4 x 10-5 x 1000/400 = 10-4 Now, BaSO4 ⇔ Ba+2 + \(SO_4^{-2}\) KSP = [Ba+2] [\(SO_4^{-2}\)] = (S . S) S2 = 10-4 x 10-4 = 10-8 M2 Hence, KSP value is 10-8 M2. |
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