54. During the adsorption of polybutadiene from a solution in hexane at a temperature of 293 K on calcium sulfate, the following experimental data were obtained:
С• kg/m3 2.0 4.2 6.4 8.0
А•103 kg/kg 2.03 4.216 6.97 7.6
Determine the constants of the Langmuir equation.

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