For a salt XY, which is a strong electrolyte, the plot of Λₘ versus √c is a slope of −90.0 S cm² mol⁻³ᐟ² L¹ᐟ² at 298 K. At 0.01 M concentration of XY, the value of Λₘ is 145.0 S cm² mol⁻¹. The limitin

Question

For a salt XY, which is a strong electrolyte, the plot of Λₘ versus √c is a slope of −90.0 S cm² mol⁻³ᐟ² L¹ᐟ² at 298 K. At 0.01 M concentration of XY, the value of Λₘ is 145.0 S cm² mol⁻¹. The limiting molar conductivity of Y⁻ ion (λ°Y⁻, in S cm² mol⁻¹) at 298 K will be (Given: λ°X⁺ = 74.0 S cm² mol

Accepted Answer

Answer: 80.0 — Λ°ₘ = 145 + 90 × √0.01 = 154 S cm² mol⁻¹. Hence λ°Y⁻ = 154 − 74 = 80 S cm² mol⁻¹.

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