2. When determining the surface tension of acetic acid solutions using the Rebinder method, the pressure values ​​at which the bubble broke through were obtained:
Distilled water 11.5
Acetic acid concentration, mol/l 0.01 0.10 0.50 1.00
Pressure P, mmHg 11.0 10.5 10.0 9.00
Plot a graph of the dependence P=φ(b)

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