Предмет: Химия, автор: feuerad

Определить массу оксида цинка,которая прореагирует с m 200г раствора серной кислоты с массовой долей w 35%

Ответы

Автор ответа: коте1999

w=mвещества/m раствора нам надо найти массу вещества
0.35(35:100)•200=70г

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