34. Решение задачки по химии №91

2. Solutions of 41% and 37% hexamethylenetetramine (standard solution 40% - 1 l) were received for analysis. Calculate the deviations allowed in the concentrate, the amount of water required to dilute the solution, the amount of hexamethylenetetramine that must be added to strengthen the solution (p20 = 1.0421 g/cm3)

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