If 10.6 kg of al2o3(s),10.6 kg of al2o3(s), 51.4 kg of naoh(l),51.4 kg of naoh(l), and 51.4 kg of hf(g)51.4 kg of hf(g) react completely, how many kilograms of cryolite will be produced?

43.668 kg

Explanation:

First we set the equation:

Now, we need to now the kmoles for each reactant:

With this, we can see that the limit reactant is the aluminum oxide, so, with the equation for the reaction we know that 1 kmol of aluminum oxide, produces 2 kmol of cryolite, so we set a rule of three and see that 0.208 kmoles of cryolite are produced, the we proceed to calculate the mass:

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the answer is 1 i believe