4. At 291 K, the electrical conductivity of another concentrated solution and the anion of valeric acid is 3.242 x 10-3 and 2.662 x 10-4 cm2/V x sec, and the temperature coefficients of rates are 0.0154 and 0.0244 K-1. Find the equivalent electrical conductivity of an infinitely dilute solution of valeric acid at 298 K.

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