Calculate the mass of iron oxide Fe3O4 in the amount of 0.35 mol.
| July 24, 2021 | education
In order to calculate the mass of iron scale Fe3O4, you need to calculate the molar mass by the formula:
M (Fe3O4) = 3Ar (Fe) + 4Ar (O);
M (Fe3O4) = 3 * 56 + 4 * 16 = 168 + 64 = 232 (g / mol);
The mass is calculated by the formula:
n = m / M hence m = M * n;
m = 232 * 0.35 = 81.2 (d);
Answer: the mass of iron oxide is 81.2 g.
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