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

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 67.3% yield and a limiting reagent of 35.4 grams of NaOH?

A) 61.9 g
B) 41.7 g
C) 125 g
D) 186 g
E) 20.2 g