The molar mass of the water insoluble product formed from the fusion of chromite ore \(FeCr_2\text{O}_4\) with \(Na_2\text{CO}_3\) in presence of \(O_2\) is ....... g mol\(^{-1}\):
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To calculate the molar mass of a compound, add the molar masses of the constituent atoms.
- Fusion of chromite ore (\( \text{FeCr}_2\text{O}_4 \)) with Na₂CO₃ and oxygen yields Fe₂O₃ and Cr₂O₃. - The molar mass of Cr₂O₃, the water-insoluble product, is calculated as: \[\text{Molar mass of Cr}_2\text{O}_3 = 2(52) + 3(16) = 196 \, \text{g/mol}\]The molar mass of the water-insoluble product is 196 g/mol.
