Percent Yield - Page 10
Questions
- When glucose undergoes fermentation, ethanol and carbon dioxide are formed. #"C"_6"H"_12"O"_6 -> 2"C"_2"H"_5"OH" + 2"CO"_2#. Calculate the mass of ethanol that could be obtained from 25 g of glucose?
- The combustion of meson produces carbon dioxide and water. assume that 52. 0g burned in the presence of excess air. What is the percentage yield if the reaction produces 87 g Of CO2?
- 1.91 g H2 is allowed to react with 9.86 g N2, producing 1.74 g NH3. What is the percent yield for this reaction under the given conditions? Express your answer to three significant figures and include the appropriate units.
- What mass of melamine, C3N3(NH2)3, will be obtained from 112.5 kg of urea, CO(NH2)2, if the yield of the overall reaction is 85.0 % ? Express your answer to three significant figures and include the appropriate units.
- 1.91 g H2 is allowed to react with 9.86 g N2, producing 1.74 g NH3. What is the theoretical yield in grams for this reaction under the given conditions? Express your answer to three significant figures and include the appropriate units.
- How would the percent yield be affected if the Na2CO3 was not throughly dried in the crucible before weighing?
- If 1.87 g of acetic acid (CH3CO2H) reacts with 2.31 g of isopentyl alcohol (C5H12O) to give 2.64 g of isopentyl acetate (C7H14O2), what is the percent yield of the reaction?
- How many grams of water would be produced by the decompostion of 1.07 grams of H2O2?
- When 52.1 g of calcium is reacted with nitrogen gas, 27.9 g of calcium nitride is produced. What is the percent yield of calcium nitride for this reaction?
- What is the theoretical yield (in g) and percent yield of water in the reaction (%) ?
- 1.30 grams of hydrogen gas are reacted with an excess of nitrogen gas to produce 4.21 grams of ammonia. What is the percent yield?
- During an investigation, a student burns magnesium to form magnesium oxide. the starting mass is measured at 21.3g if the student recovers 30.2g of magnesium oxide what is the percent yield?
- Is the percent yield a gas?
- A chemist mixes 49.2g of water with 91.1g of 2-nitroethanol and 52.1g of 2-methylpyrazine. Calculate the percent by mass of each component solution. What is the mass percent of water, 2-nitroethanol, and 2-methylpyrazine?
- Actual yield is always less than theoretical yield?. Give two reasons
- How to find the amount of product when the amounts of the reactants are given in the same unit or different??