Cryolite Is a Compound Needed for the Hall-Heroult Process for Producing

question 56

Multiple Choice

Cryolite is a compound needed for the Hall-Heroult process for producing aluminum.Cryolite is produced by the following reaction:
6 HF + Al(OH) ₃ + 3 NaOH → Na₃AlF₆ + 6 H₂O
How many grams of cryolite are produced if the reaction has a 94.3% yield and a limiting reagent of 27.8 grams of HF?

• A)275 g
• B)48.6 g
• C)45.9 g
• D)15.0 g
• E)15.9 g

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