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March 2022
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Помогите решить задачу по химии!
Дано: m(H2O) - 50г
m(Fe(OH)3)
Fe(OH)3 - ?
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wasurenagusa
Просто, вы на будущее учитывайте, что это вообще-то важно..
2Fe(OH)3 + t = Fe2O3 + 3H2O
n(H2O) = 50/18 = 2,78 моль
n(Fe(OH)3) =
2,78*2/3 = 1,85 моль
m
(Fe(OH)3) =
1,85*107 = 197,95 г
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9600662
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Answers & Comments
2Fe(OH)3 + t = Fe2O3 + 3H2O
n(H2O) = 50/18 = 2,78 моль
n(Fe(OH)3) = 2,78*2/3 = 1,85 моль
m(Fe(OH)3) = 1,85*107 = 197,95 г