Adapted by Nelson Nuñez-Rodriguez
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By David W. Ball
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| QUESTION | ANSWER |
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1. What is the difference between the theoretical yield and the actual yield? |
1. Theoretical yield is what you expect stoichiometrically from a chemical reaction; actual yield is what you actually get from a chemical reaction. |
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3. A worker isolates 2.675 g of SiF4 after reacting 2.339 g of SiO2 with HF. What are the theoretical yield and the actual yield? SiO2(s) + 4HF(g) → SiF4(g) + 2H2O(ℓ)
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3. theoretical yield = 4.052 g; actual yield = 2.675 g |
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5. A chemist decomposes 1.006 g of NaHCO3 and obtains 0.0334 g of Na2CO3. What are the theoretical yield and the actual yield? 2NaHCO3(s) → Na2CO3(s) + H2O(ℓ) + CO2(g) |
5. theoretical yield = 0.635 g; actual yield = 0.0334 g |
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7. What is the percent yield in Exercise 3? |
7. 66.02% |
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9. What is the percent yield in Exercise 5? |
9. 5.26% |
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