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?

FREE Expert Solution
80% (138 ratings)
FREE Expert Solution
80% (138 ratings)
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?


Frequently Asked Questions

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 .

What is the difficulty of this problem?

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

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 16 minutes to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

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