60. Solution to Chemistry Problem
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- The electrical conductivity of potassium iodate (KIO₃) was measured at 25°C [66]. The data are presented in the table below; C – concentration of potassium iodate (g-equiv·L⁻¹); A – equivalent conductivity of the solution corrected for water. Determine Λ₀ – the limiting equivalent conductivity of KIO₃.
C (g-equiv·L⁻¹) A (S·cm²/mol)
0.00018265 113.07
0.00035295 112.61
0.00070430 111.91
0.00099845 111.45
0.0017117 110.45
0.0025362 109.78
0.0032859 109.19
0.0039118 108.78
- Based on the calculations from part 1, determine the conductivity at infinite dilution for sodium iodate and lithium iodate. Use the conductivity data at infinite dilution for the ions:
Li⁺: 36.68 S·cm²/mol
Na⁺: 50.10 S·cm²/mol
K⁺: 73.50 S·cm²/mol
- Calculate the conductivities of lithium iodate and sodium iodate at C = 0.002 mol/L.
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