87 Решение задачки по химии №08 727

278. Determine the number and total surface of particles formed during crushing of a substance (table) and having a cubic or spherical surface.
Substance m, g 1 edge of the cube cm d , cm ball, Density of the substance, g/cm3
Camphor 1.0 3.5*10-5 2.4*10-5 0.99

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