Cryolite, Na3AIF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide.
Al2O3 (s) + 6 NaOH(l) + 12 HF(g) → 2 Na 3AlF6 + 9 H2O(g)
a) If 13.9 kilograms of Al 2O3 (s), 50.4 kilograms of NaOH(l), and 50.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?
b) Which reactants will be in excess?
c) What is the total mass of the excess reactants left over after the reaction is complete?
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