31. Решение задачи по химии №003 157

3. Determine the manganese content in the ferrovanadium sample using the following data:
С(Mn)% 1.02 1.14 1.30 x
S(Mn) 1.02 1.06 1.13 1.04
S(Fe) 0.68 0.66 0.64 0.66

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