Предмет: Химия, автор: 11ячсм

Какая масса серебра может быть вытеснена медью из раствора нитрата серебра массой 340г с массовой долей соли 2%?

Ответы

Автор ответа: Len1111

2AgNO3 + Cu= Cu(NO3)2 + 2Ag

m(AgNO3)= 349*0.02= 6.8 г

n (AgNO3)= 6.8/170= 0.04 моль

n (Ag)= 0,04 моль

m (Ag)= 0,04 моль* 108г/моль= 4,32 г

Ответ: 4,32 г

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