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Calculate the mass of iron in 10 kg of i...

Calculate the mass of iron in 10 kg of iron ore which contains 80% of pure ferric oxide.

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To solve the problem of calculating the mass of iron in 10 kg of iron ore which contains 80% of pure ferric oxide (Fe2O3), we can follow these steps: ### Step 1: Determine the mass of pure ferric oxide in the iron ore. Given that the iron ore weighs 10 kg and contains 80% pure ferric oxide, we can calculate the mass of Fe2O3 in the ore. \[ \text{Mass of Fe2O3} = \text{Total mass of ore} \times \text{Percentage of Fe2O3} \] ...
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