31. Решение задачки по химии №0212156

3. The solubility of sodium sulfate at 0 C is 4.5 g/100 g H2O, and at 40 C – 48.4 g/100 g H2O. What volume of water is required to dissolve 800 g of Na2SO4 at 40 C and what mass of salt precipitates when this solution is cooled to 0 C?

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