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In the Process of Obtaining Lead from PbS, or Galena

Question 76

Multiple Choice

In the process of obtaining lead from PbS, or galena, the galena is "roasted" (heated in the presence of oxygen) , so that the following reaction occurs: 2PbS(s) + 3O2(g) → 2PbO(s) + 2SO2(g) If 50.0 g of PbS are mixed with 25.0 g of oxygen, how many grams of PbO should form?


A) 116 g
B) 46.6 g
C) 163 g
D) 69.9 g
E) 93.2 g

Correct Answer:

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