Determine the mass fraction of iron in iron (III) hydroxide
| November 30, 2020 | education
The mass fraction of an element in a substance is calculated by the formula: Ar (element) × 100% / Mr (total substance). Hence, Ar (Fe) = 56 (according to the periodic table), Mr (Fe (OH) 3) = 107;
W (Fe) = (56 × 100%) / 107 = 52.37%.
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