A 0.05 N solution of a salt occupying a volume between two platinum electrodes seprated by a distance of 1.72 cm an having an area of 4.5 cm2 has a resistance of 250 ohm. calculate equivalent conductance of a solution
To calculate the equivalent conductance of a solution, you need to know its resistance, the dimensions of the electrodes, and the concentration of the solution.
In this case, you are given the resistance (250 ohms), the distance between the electrodes (1.72 cm), and the area of the electrodes (4.5 cm²). However, you are missing the concentration of the solution (0.05 N).
To calculate the equivalent conductance, you need to use the formula:
Equivalent conductance (Λeq) = (Resistance × Area) / (Distance × Concentration)
Substituting the given values into the formula:
Λeq = (250 ohms × 4.5 cm²) / (1.72 cm × 0.05 N)
Now, let's calculate the answer:
Λeq = (1125 cm²·ohms) / (0.086 cm·N)
To calculate this, you need to convert the units of cm² to cm²·ohms by multiplying by the unit ohm.
Λeq ≈ 13102 cm²·ohm/N
So, the equivalent conductance of the solution is approximately 13102 cm²·ohm/N.