93. Urea (CH₂N₂O), a common fertilizer, can be synthesized by the reaction of ammonia (NH3) with carbon dioxide: 2 NH3(aq) + CO₂(aq) →→→ CH4N₂O(aq) + H₂O(1) An industrial synthesis of urea produces 87.5 kg of urea upon reaction of 68.2 kg of ammonia with 105 kg of carbon dioxide. Determine the limiting reactant, theoretical yield of urea, and percent yield for the reaction.

93. Urea (CH₂N₂O), a common fertilizer, can be synthesized by the reaction of ammonia (NH3) with carbon dioxide: 2 NH3(aq) + CO₂(aq) →→→ CH4N₂O(aq) + H₂O(1) An industrial synthesis of urea produces 87.5 kg of urea upon reaction of 68.2 kg of ammonia with 105 kg of carbon dioxide. Determine the limiting reactant, theoretical yield of urea, and percent yield for the reaction.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentists, can be made from elemental phosphorus in a two step process. In the first step, phosphorus and oxygen react to form diphosphorus pentoxide: →+P4s 5O2g 2P2O5g In the second step, diphosphorus pentoxide and water react to form phosphoric acid H3PO4 : →+P2O5g 3H2Ol 2H3PO4l Suppose the yield of the first step is 66.% and the yield of the second step is 62.% . Calculate the mass of phosphorus required to make 2.0kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
When exposed to air, aluminum metal, AlAl, reacts with oxygen, O2O2, to produce a protective coating of aluminum oxide, Al2O3Al2O3, which prevents the aluminum from rusting underneath. The balanced reaction is shown here: 4Al+3O2→2Al2O3 a) What is the theoretical yield of aluminum oxide if 3.00 molmol of aluminum metal is exposed to 2.55 molmol of oxygen? Express your answer with the appropriate units.
Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentists, can be made from elemental phosphorus in a two step process. In the first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(s) + 5O2(g) -> 2P2O5(g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid H3PO4: P2O5(g) + 3H2O(l) -> 2H3PO4(l) Suppose the yield of the first step is 69.% and the yield of the second step is 82.%. Calculate the mass of phosphorus required to make 1.0kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
Aspirin can be synthesized in the lab by combining salicylic acid (C,H,0,) and acetic anhydride (C,H,0,) to form aspirin ( C,H,O.) and acetic acid (C,H,O,). The balanced equation for this reaction is C,H,0, + C,H,O, → C,H,0, + C,H¸0, A student started with 3.33 mL acetic anhydride (density = 1.08 g/mL) and 2.61 g salicylic acid. The student synthesized 2.53 g of aspirin. Select the limiting reactant. salicylic acid (C,H,O,) acetic anhydride (C,H,0,) aspirin (C, H,O,) acetic acid (C,H0,) Calculate the theoretical yield of aspirin (C,H, O,). theoretical yield: uloto the percent yield for aspirin (C, H, O).
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The Apollo 13 mission astronauts are running out of oxygen and need to get rid of the excess carbon dioxide. You know that sodium hydroxide can remove carbon dioxide from the spacecraft cabin. The filter which they had been using is fully saturated and no longer works. The astronauts have a 5 kg container of sodium hydroxide on the ship. The reaction to neutralize the air, remove carbon dioxide with sodium hydroxide is shown below CO2(g) + 2NaOH(s) ⟶⟶ Na2CO3(aq) + H2O(l) The astronauts have 2 days left before they land on earth. You know that there are three astronauts, and each astronaut emits roughly 500. g of carbon dioxide each day. Is there enough sodium hydroxide in the cabin to cleanse the cabin air of the carbon dioxide, or are the astronauts doomed? Calculate how much sodium hydroxide is required to remove all the carbon dioxide from the three astronauts. Be sure to show all your work!
What type of reaction is represent by the equation: C,H12 + 902 → 6CO2 + 6H20
Magnesium oxide can be made by heating magnesium metal in the presence of oxygen. The balanced equation for the reaction is:2Mg(s)+O2(g)→2MgO(s)2Mg(s)+O2(g)→2MgO(s) When 10.1 gg of Mg are allowed to react with 10.5 g of O2, 13.4 gg of MgO are collected. Determine the limiting reactant for the reaction. Express your answer as a chemical formula.
15. Citric acid, C6H807 (aq), is often used as an additive to make candies "sour. a. Draw a flowchart that shows how to caloulate the molar mass of citric acid, b. Verify the steps in your flowchart by calculating the molar mass of citric acid.
When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are: O₂ (g) Fe₂03 (s) | Fe (s) +