Multiple Choice
Calculate the percent yield of CO2 when 28.16 g of CO2 are produced from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2, given the reaction: 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O.
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3. Chemical Reactions
Percent Yield
Multiple Choice
If the theoretical yield of CO2 for the reaction is 160 g and the actual yield is 146 g, what is the percent yield of CO2 for the reaction? Express your answer to three significant figures.
A
87.5%
B
95.0%
C
91.3%
D
100.0%
Verified step by step guidance1
Understand the concept of percent yield: Percent yield is a measure of the efficiency of a reaction, calculated by comparing the actual yield to the theoretical yield.
Identify the given values: The theoretical yield of CO2 is 160 g, and the actual yield is 146 g.
Use the formula for percent yield: \( \text{Percent Yield} = \left( \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \right) \times 100 \% \).
Substitute the given values into the formula: \( \text{Percent Yield} = \left( \frac{146}{160} \right) \times 100 \% \).
Calculate the percent yield and express it to three significant figures.
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