In an aqueous solution containing acetic acid (HAc) and potassium acetate (KAc) at 25 °C, the transference number of the acetate ion (Ac⁻) is 0.3. The limiting molar conductivities of H⁺, K⁺, and Ac⁻ are, respectively, 350 × 10⁻⁴ S·m²·mol⁻¹, 73.5 × 10⁻⁴ S·m²·mol⁻¹, and 40.9 × 10⁻⁴ S·m²·mol⁻¹. Calculate the ratio of the concentrations of acetic acid to potassium acetate, namely [HAc]/[KAc].
1
1/12
2
3/7
3
4/6
4
5/2
5
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