Предмет: Химия, автор: Nedoymnik228

на гашеную известь (ca(oh)2) взятую в необходимом количестве подействовали 3,15кг чистой азотной
кислоты. Какую массу нитрата кальция
получили, если практический выход нитратов кальция в массовых долях составляет 0.98 (98%)

Ответы

Автор ответа: YuryEuler

Ответ:

4,018 кг Ca(NO₃)₂.

Объяснение:

Ca(OH)₂ + 2HNO₃ ⟹ Ca(NO₃)₂ + 2H₂O

m(Ca(NO₃)₂) = 0,98 · 3,15 кг · 164 г/моль / (2 · 63 г/моль) = 4,018 кг.

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