December 2021 0 12 Report
Какой объем уксусной эссенции с ω (СН3СООН) = 30 % (ρ = 1,04 г/см3) можно получить из 500 кг технического СаС2 (массовая доля примесей 4 %), если выход кислоты равен 80 %?
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