July 2022 1 17 Report
1)Определите массу чистого CaSO4*H2O в 5 кг природного гипса, содержащего 10% примесей.
2) Определите массовую долю чистого K2CО3 в древесной золе, если 5 кг золы содержат 100 г K2CO3.
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