9.
1. Calculate, arrange in a table and plot the dependences of specific, equivalent conductivity and degree of dissociation on concentration and dilution based on the data given in the table.
2. Calculate the dissociation constants of the electrolyte for all concentrations and draw a conclusion about the subordination of the solutions to Ostwald's dilution law.
3. Determine at what concentration the degree of dissociation of the substance in the solution is 0.1 and what is the pH of this solution.
4. Calculate the change in Helmholtz energy (ΔF ) during dissociation.
For task options, see Tables 10-12.

Table 10

Task No.
C, mol/l 0.05 0.03 0.01 0.005 0.003 0.001 λ0.104 m2/Ohm.mol-eq

Substance
ρ (Ohm.m) at T=298 K
9 NH4OH 10.3 14.5 25.8 100 143 251 273

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