48. Решение задачи по химии №004 853

6. The density of a sulfuric acid solution at 20°C, measured with a hydrometer, is 1.535 g/cm3.
Determine the mass fraction of acid in the solution if the following data is given in the reference book:
1.520 g/cm3 62.00%
1.580 g/cm3 67.35%

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