1. В 1 л воды растворено 2 моль NaOH. Определите w% NaOH в растворе.
Ответ: 7,4%

2. Определите w% NH3 в растворе, полученном при растворено 112 NH3(н.у) в 315 мл H2O.
Ответ: 21,2%
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