# Problem: 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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###### FREE Expert Solution
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###### Problem Details

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?

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Limiting Reagent concept. You can view video lessons to learn Limiting Reagent Or if you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems .

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Our tutors rated the difficulty of Cryolite, Na3AIF6 (s), an ore used in the production of alum... as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Holland's class at TXSTATE.