Предмет: Химия, автор: VasyaRostov

16 г гидроксида железа (трехвалентного) вступили во взаимодействие с соляной кислотой, определите массу образовавшейся соли

Ответы

Автор ответа: Rosig

Ответ:

Fe(OH)3 + 3HCl = FeCl3 + 3H2O

n=m/M

n(Fe(OH)3) = 16г÷107г/моль = 0,2 моль

по уравнению реакции: n(Fe(OH)3) = n(FeCl3)= 0,2 моль

m(FeCl3) = 0,2×162,5=32,5 г

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