27. Решение задачки по химии №14

11. Find the surface tension of ethanol if the following data were obtained using a stalagmometer: the number of ethanol drops is 38, its density at 15 C is 0.798*103 kg/m3, the number of water drops is 20. The surface tension of water at 288 K is 73.49*105 J/m2.

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