Limiting Reactant - Theoretical and Percentage Yields
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1. |
4KO2 + 2H2O |
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4KOH + 3O2 |
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If a reaction vessel contains 0.15 mol KO2 and 0.10 mol H2O, what is the limiting reactant? How many moles of oxygen can be produced? |
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Limiting Reactant: KO2 |
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Oxygen Produced: 0.11 moles |
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2. |
NaCl + H2SO4 |
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NaHSO4 + HCl |
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If a reaction vessel contains 10.0 g of sodium chloride and 10.0 g of sulfuric acid. What is the limiting reactant? What is the theoretical yield of hydrochloric acid? How many grams of excess reactant are left unconsumed? |
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Limiting Reactant: H2SO4 |
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HCl theoretical yield: 3.72 g |
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Excess NaCl: 4.0 g |
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3. |
3TiO2 + 4C + 6Cl2 |
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3TiCl4 + 2CO2 + 2CO |
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A vessel contains 4.15 g TiO2, 5.67 g C, 6.78 g Cl2. What is the limiting reactant and the theoretical yield of titanium tetrachloride? |
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Limiting Reactant: Cl2 |
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TiCl4 produced: 9.07 g |
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4. |
C7H6O3 + C4H6O3 |
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C9H8O4 + C2H4O2 |
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What is the theoretical yield (in grams) of aspirin, C9H8O4, when 2.00 g of C7H6O3 is heated with 4.00 g of C4H6O3? If the actual yield of aspirin is 2.21 g, what is the percentage yield? |
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Theoretical Yield: KO2 |
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Percentage Yield: 84.7% |
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