In the Process of Obtaining Lead from PbS, or Galena $\rightarrow$

question 24

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) $\rightarrow$ 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

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