Solution-What is the total mass of the excess reactants

Al2O3 (s) + 6 NaOH(l) + 12 HF (g) -> 2Na3AlF6 + 9H20 (g)

If 16.7 kilograms of Al2O3, 56.4 kg of NaOH, and 56.4 kg of HF react completely, how many kg of Na3AlF6 be produced?

What is the total mass of the excess reactants left over after the reaction in complete?

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What is the total mass of the excess reactants : What is the total mass of the excess reactants left over after the reaction in complete?

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