70. Solving a chemistry problem

Based on the data in Table 32 on the properties of aqueous solutions of substance A, perform the following tasks:
1. Construct a graph of the dependence of specific and equivalent electrical conductivities on dilution.
2. Check whether the aqueous solution of substance A obeys the Ostwald dilution law.
3. If the solution of a substance is a solution of a weak acid or a weak base, determine at what concentration the degree of dissociation of the substance in the solution is 0.1 and what is the pH of the given solution.
4. If the solution is a strong acid or base, calculate its pH at c=0.1 kmol/m3, taking into account the ionic strength of the solution.
5. For a weak electrolyte, calculate the dissociation constant Kd and the equivalent electrical conductivity ppi of an infinite dilution, without using data on the ion mobility.
6. For a strong electrolyte, based on the dependence of the equivalent electrical conductivity on √s, which is given by the Kohlrausch equation λ= λ∞-а√s, calculate the equivalent electrical conductivity at infinite dilution and the constant of the equation using a graphical method
7. For weak acids and bases, calculate the heat of dissociation and, at one of the temperatures, the change in the Helmholtz energy (∆F) during dissociation.
HI electrolyte solution
T,K 298 281
λ0 =35.0 31.5
λ0-=7.69 6.65
Options
T 298 298 298 298 298 298 298 281
s 0.1 0.05 0.02 0.01 0.005 0.002 0.001 0.1
r 0.254 0.50 1.22 2.43 4.82 12.1 23.8 0.289