Determine the Theoretical Yield and the Percent Yield If 21

question 106

Multiple Choice

Determine the theoretical yield and the percent yield if 21.8 g of K₂CO₃ is produced from reacting 27.9 g KO₂ with 29.0 L of CO₂ (at STP) . The molar mass of KO₂ is 71.10 g mol^-1 and K₂CO₃ is 138.21 g mol^-1. 4KO₂(s) + 2CO₂(g) → 2K₂CO₃(s) + 3O₂(g)

• A) 27.1 g, 80.4% yield
• B) 179 g, 12.2% yield
• C) 91.7 g, 23.8% yield
• D) 206 g, 10.6% yield
• E) 61.0 g, 35.7% yield

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Definitions:

Oncologist

A specialist who identifies tumors and treats patients who have cancer.

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