11. Calculate the half-coagulation time using the experimental data on the change in the total number of particles during the coagulation of the lyophobic dispersed system in water:
t, s 0 7.0 15.0 20.2 28.0
Ve*10-15, particles/m3 32.2 24.2 19.9 16.7 14.2
Calculate and plot the curves of changes in the number of primary and binary particles over time.

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