The molar conductivities at infinite dilution of barium chloride, sulphuric acid and hydrochloric acid are 280, 860 and 426 Scm² mol?¹ respectively. The molar conductivity at infinite dilution of barium sulphate is ________ S cm² mol?¹. (Round off to the nearest integer).
The molar conductivities at infinite dilution of barium chloride, sulphuric acid and hydrochloric acid are 280, 860 and 426 Scm² mol?¹ respectively. The molar conductivity at infinite dilution of barium sulphate is ________ S cm² mol?¹. (Round off to the nearest integer).
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1 Answer
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λ° (BaCl? ) = 280 Scm²mol? ¹
λ° (H? SO? ) = 860 Scm²mol? ¹
λ° (HCl) = 426 Scm²mol? ¹
λ° (BaSO? ) = λ° (BaCl? ) + λ° (H? SO? ) - 2λ° (HCl)
= 280 + 860 - 2 × 426
= 288 Scm² mol? ¹
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