The number of drops of water flowing from the stalagmometer is 54.8; 54.6; 54.7. The average number of drops of the test solution is 88.2. The surface tension of water at the temperature of the experiment is 72.4 mJ/m2. The relative density of the solution is p/p0=1.1306, where p0 is the density of water. Calculate the surface tension of the solution.
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