122. Задачка по химии №012 282

To prepare 100 ml of the medicine, the pharmacist mixed 70 ml of water and 30 ml of an ethanol extract (the extracted substance can be ignored due to its small amount). It is known that in the desired solution, the partial molar volume of the ethanol extract is 54.6 cm3/mol, water 17.3 cm3/mol. The density of water is 0.98 g/cm3, the density of the ethanol extract is 0.785 g/cm3. Is the mixture prepared correctly?

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