140. Solving a chemistry problem
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140. Solving a chemistry problem
2. Calculate the surface tension of water, determined by the capillary rise method, if at 298K the water has risen to a height of 35.3 mm in the capillary. The diameter of the capillary was determined by measuring the length of the column and the mass of mercury that filled the capillary under pressure: the length of the column of mercury was 8.04 cm, its mass was 0.565 g. The density of mercury was 13.54 g / cm3, and the density of water was 0.997 g / cm3.
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