Chemistry Chemistry Practice Problems Solutions Library

Percent Yield Solutions Library

Access 134 Percent Yield video and text solutions to help you complete your homework.

Browse Solutions

134 solutions

Percent Yield

Q. What mass of melamine, C3N3(NH2)3, will be obtained from 194.0 kg of urea, CO(NH2)2, if the yield of the overall reaction is 77.0 % ?Melamine, C3N3...

Solved • Jul 1, 2020

Percent Yield

Q. What is the percent yield for this reaction under the given conditions? Express your answer to three significant figures and include the appropriat...

Solved • Jul 1, 2020

Percent Yield

Q. Part C. The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0% yield. How many grams would be produced from 7...

Solved • Jul 1, 2020

Percent Yield

Q. Part B. A chemist ran the reaction and obtained 5.90 g of ethyl butyrate. What was the percent yield? Express your answer as a percent to three sig...

Solved • Jun 30, 2020

Percent Yield

Q. Assuming an efficiency of 30.60%, calculate the actual yield of magnesium nitrate formed from 140.2 g of magnesium and excess copper(II) nitrate.Mg...

Solved • Mar 17, 2020

Percent Yield

Q. Combining 0.254 mol of Fe2O3 with excess carbon produced 12.8 g of Fe.Fe2O3 + 3C → 2Fe + 3COWhat is the actual yield of iron in moles?What was the ...

Solved • Mar 17, 2020

Percent Yield

Q. Hydrazine, N2H4, is an oily liquid used as a rocket fuel. It can be prepared in water by oxidizing ammonia with hypochlorite ions:2 NH3(g) + ClO−(a...

Solved • Nov 28, 2019

Percent Yield

Q. The reaction of 11.9 g of CHCl3 with excess chlorine produced 11.2 g of CCl4, carbon tetrachloride:What is the percent yield?A. 94%B. 36.4%C. 100%D...

Solved • Nov 21, 2019

Percent Yield

Q. Give the percent yield when 28.16 g of CO2 (molar mass = 44.01 g/mol) are formed from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2.2...

Solved • Oct 25, 2019

Percent Yield

Q. If the theoretical yield for a reaction was 180 grams and you actually made 118 grams of the product, what is your percent yield?A. 78.2%B. 122%C. ...

Solved • Oct 3, 2019

Percent Yield

Q. What is the percent yield for CH3Br if 12.23 g is produced when 5.00 g of CH4O reacts with excess HBr? CH4O + HBr → CH3Br + H2OA. 16% B. 67% C. 84%...

Solved • Oct 3, 2019

Percent Yield

Q. In the reaction of 1.00 mole of O2 with 2.00 mole of H2, 2H2  + O2→ 2H2O If 30.0g of H2O is formed, what is the percent yield?a)  100%             ...

Solved • Sep 15, 2019

Percent Yield

Q. Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide:                CaO (s) + H2O  (l) → Ca(OH)2 (s)In a particu...

Solved • Sep 13, 2019

Percent Yield

Q. 1.95 g of H2 is allowed to react with 9.94 g of N 2, producing 1.56 g of NH 3. What is the theoretical yield in grams for this reaction under the g...

Solved • Aug 7, 2019

Percent Yield

Q. Nitrogen monoxide and oxygen react to form nitrogen dioxide. Consider the mixture of NO and O2 shown in the accompanying diagram. The blue spheres ...

Solved • Oct 31, 2018

Percent Yield

Q. Paclitaxel, C47H51NO14, is an anticancer compound that is difficult to make in the lab. One reported synthesis requires 11 steps, and the final yie...

Solved • Oct 31, 2018

Percent Yield

Q. If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, Cl2, to form 7.7 g of titanium (IV) chloride in a combination reaction, what is...

Solved • Oct 31, 2018

Percent Yield

Q. When ethane (C2H6) reacts with chlorine (Cl2), the main product is C2H5Cl; but other products containing Cl, such as C2H4Cl2, are also obtained in ...

Solved • Oct 31, 2018

Percent Yield

Q. Hydrogen sulfide is an impurity in natural gas that must be removed. One common removal method is called the Claus process, which relies on the rea...

Solved • Oct 31, 2018

Percent Yield

Q. When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water.How many grams of sodium sulf...

Solved • Oct 31, 2018

Percent Yield

Q. Define the terms  theoretical yield, actual yield,  and  percent yield.

Solved • Oct 31, 2018

Percent Yield

Q. Why is the actual yield in a reaction almost always less than the theoretical yield?

Solved • Oct 31, 2018

Percent Yield

Q. Can a reaction ever have 110% actual yield?

Solved • Oct 31, 2018

Percent Yield

Q. When benzene (C6H6) reacts with bromine (Br2), bromobenzene (C6H5Br) is obtained: C6H6 + Br2 → C6H5Br + HBrIf the actual yield of bromobenzene was ...

Solved • Oct 31, 2018

Percent Yield

Q. Mining companies use this reaction to obtain iron from iron ore:Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)The reaction of 182 g of Fe2O3 with 84.1 g of C...

Solved • Oct 31, 2018

Percent Yield

Q. Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is2Mg(s) + O2(g) → 2Mg...

Solved • Oct 31, 2018

Percent Yield

Q. Many computer chips are manufactured from silicon, which occurs in nature as SiO2. When SiO2 is heated to melting, it reacts with solid carbon to f...

Solved • Oct 31, 2018

Percent Yield

Q. We typically calculate the percent yield using the actual yield and theoretical yield in units of mass (grams or kilograms).Would the percent yield...

Solved • Oct 31, 2018

Percent Yield

Q. A reaction has a theoretical yield of 45.8 g. When the reaction is carried out, 37.2 g of the product is obtained.What is the percent yield?

Solved • Oct 31, 2018

Percent Yield

Q. Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand. The ilmenite can be separated from the sand wit...

Solved • Oct 31, 2018

Percent Yield

Q. Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (...

Solved • Oct 31, 2018

Percent Yield

Q. The combustion of liquid ethanol (C2 H5 OH) produces carbon dioxide and water. After 4.63 mL of ethanol (density = 0.789g/ml) was allowed to burn i...

Solved • Oct 31, 2018

Percent Yield

Q. Lead ions can be precipitated from solution with KCl according to the following reaction: Pb2+ (aq) + 2 KCl (aq) → PbCl2 (s) + 2 K+ (aq)When 28.6 g...

Solved • Oct 31, 2018

Percent Yield

Q. Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows: 2NH3(aq) + CO2(aq) → ...

Solved • Oct 31, 2018

Percent Yield

Q. What is the the percent yield?

Solved • Oct 31, 2018

Percent Yield

Q. Assuming an efficiency of 49.30%, calculate the actual yield of magnesium nitrate formed from 144.4 g magnesium and excess copper(I) nitrate. Mg + ...

Solved • Oct 23, 2018

Percent Yield

Q. The reaction of 4.15 g of Cl2 with 2.20 g of P4 produces 4.92 g of PCl5. What is the percent yield?

Solved • Oct 23, 2018

Percent Yield

Q. Combining 0.319 mol of Fe2O3 with excess carbon produced 11.3 g of Fe.Fe2O3 + 3C → 2Fe + 3CO What is the actual yield of iron in moles? What was th...

Solved • Oct 23, 2018

Percent Yield

Q. Nitrogen monoxide is produced by combustion in an automobile engine.For the following reaction, 4.64 grams of nitrogen monoxide are mixed with exce...

Solved • Oct 23, 2018

Percent Yield

Q. For the following reaction, 4.68 grams of sulfuric acid are mixed with excess barium hydroxide. The reaction yields 8.89 grams of barium sulfate. b...

Solved • Oct 23, 2018

Percent Yield

Q. Sodium bicarbonate (baking soda), NaHCO3, can be purified by dissolving it in hot water (60 °C), filtering to remove insoluble impurities, cooling ...

Solved • Oct 19, 2018

Percent Yield

Q. Uranium can be isolated from its ores by dissolving it as UO 2(NO3)2, then separating it as solid UO2(C2O4)∙3H2O. Addition of 0.4031 g of sodium ox...

Solved • Oct 19, 2018

Percent Yield

Q. Outline the steps needed to solve the following problem, then do the calculations. Ether, (C2H5)2O, which was originally used as an anesthetic but ...

Solved • Oct 19, 2018

Percent Yield

Q. Toluene, C6H5CH3, is oxidized by air under carefully controlled conditions to benzoic acid, C6H5CO2H, which is used to prepare the food preservativ...

Solved • Oct 19, 2018

Percent Yield

Q. Citric acid, C6H8O7, a component of jams, jellies, and fruity soft drinks, is prepared industrially via fermentation of sucrose by the mold Aspergi...

Solved • Oct 19, 2018

Percent Yield

Q. Freon-12, CCl2F2, is prepared from CCl4 by reaction with HF. The other product of this reaction is HCl. Outline the steps needed to determine the p...

Solved • Oct 19, 2018

Percent Yield

Q. Bornite (Cu3FeS3) is a copper ore used in the production of copper. When heated, the following reaction occurs:2 Cu 3FeS 3 (s) + 7 O2 (g) → 6 Cu (s...

Solved • Oct 17, 2018

Percent Yield

Q. The rocket fuel hydrazine (N2H4) is made by the three-step Raschig process, which has the following overall equation: NaOCl(aq) + 2NH3(aq) ⟶N2H4(aq...

Solved • Oct 16, 2018

Percent Yield

Q. The zirconium oxalate K2Zr(C2O4)3(H2C2O4)·H2O was synthesized by mixing 1.68 g of ZrOCl2·8H2O with 5.20 g of H2C2O4·2H2O and an excess of aqueous K...

Solved • Oct 16, 2018

Percent Yield

Q. When 56.6 g of calcium and 30.5 g of nitrogen gas undergo a reaction that has a 93.0% yield, what mass (g) of calcium nitride forms?

Solved • Oct 15, 2018

Percent Yield

Q. What is the percent yield of a reaction in which 200. g of phosphorus trichloride reacts with excess water to form 128 g of HCl and aqueous phospho...

Solved • Oct 15, 2018

Percent Yield

Q. Two successive reactions, A ⟶B and B ⟶C, have yields of 73% and 68%, respectively. What is the overall percent yield for conversion of A to C?

Solved • Oct 15, 2018

Percent Yield

Q. Enter your answer in the provided box. What is the percent yield of a reaction in which 200.0 g of phosphorus trichloride reacts with excess water ...

Solved • Oct 8, 2018

Percent Yield

Q. For the following reaction, 6.92 grams of carbon tetrachloride are mixed with excess methane (CH4). The reaction yields 6.75 grams of dichlorometha...

Solved • Oct 5, 2018

Percent Yield

Q. Enter your answer in the provided box. When 92.3 g of calcium and 51.0 g of nitrogen gas undergo a reaction that has a 83.7% yield, what mass of ca...

Solved • Oct 4, 2018

Percent Yield

Q. Enter your answer in the provided box. What is the percent yield of a reaction in which 200. g of phosphorus trichloride reacts with excess water t...

Solved • Oct 4, 2018

Percent Yield

Q. Sodium borohydride (NaBH4) is used industrially in many organic syntheses. One way to prepare it is by reacting sodium hydride with gaseous diboran...

Solved • Oct 4, 2018

Percent Yield

Q. Combining 0.272 mol of Fe2O3 with excess carbon produced 17.7 g of Fe. Fe2O3 + 3C → 2Fe + 3CO What is the actual yield of iron in moles? What was t...

Solved • Oct 2, 2018

Percent Yield

Q. For the following reaction, 5.13 grams of potassium hydroxide are mixed with excess carbon dioxide. The reaction yields 4.12 grams of potassium car...

Solved • Sep 28, 2018

Percent Yield

Q. For the following reaction. 4.67 grams of sodium iodide are mixed with excess chlorine gas. The reaction yields 1.37 grams of sodium chloride. chlo...

Solved • Sep 28, 2018

Percent Yield

Q. Combining 0.218 mol of Fe2O3 with excess carbon produced 19.6 g of Fe. Fe2O3 + 3C → 2Fe + 3CO What is the actual yield of iron in moles? What was t...

Solved • Sep 27, 2018

Percent Yield

Q. O2 and CH4 react according to the following unbalanced chemical equation: O2 + CH4 → __CO + __H2 Given 2.15 g of O2 and 2.12 g of CH4, answer the f...

Solved • Sep 27, 2018

Percent Yield

Q. Nitrogen monoxide is produced by combustion in an automobile engine. For the following reaction, 4.61 grams of oxygen gas are mixed with excess nit...

Solved • Sep 26, 2018

Percent Yield

Q. For the following reaction, 3.80 grams of barium chloride are mixed with excess potassium sulfate. The reaction yields 3.80 grams of barium sulfate...

Solved • Sep 24, 2018

Percent Yield

Q. Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (...

Solved • Sep 24, 2018

Percent Yield

Q. Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) + H2O (I) → Ca(OH)2 (s) In a particular experiment,...

Solved • Sep 13, 2018

Percent Yield

Q. Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog:C (s) + O2 (g) → CO2 (g) If there is 10.48 g C and exc...

Solved • Sep 6, 2018

Percent Yield

Q. For the following reaction, 4.36 grams of sulfuric acid are mixed with excess calcium hydroxide. The reaction yields 5.35 grams of calcium sulphate...

Solved • Sep 6, 2018

Percent Yield

Q. For the following reaction, 5.13 grams of sulfur dioxide are mixed with excess oxygen gas. The reaction yields 4.30 grams of sulfur trioxide. sulfu...

Solved • Sep 6, 2018

Percent Yield

Q. What is the percent yield of the reaction below if 55.3 g of solid iodine (molar mass = 253.8 g/mol) react with an excess of hydrogen gas to produc...

Solved • Sep 5, 2018

Percent Yield

Q. 1.68 g H2 is allowed to react with 9.94 g N2, producing 2.02 g NH3.Part AWhat is the theoretical yield in grams for this reaction under the given c...

Solved • Sep 3, 2018

Percent Yield

Q. For the following reaction. 6.05 grams of silver nitrate are mixed with excess sodium chloride The reaction yields 3.83 grams of silver chloride.Na...

Solved • Aug 29, 2018

Percent Yield

Q. Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric add with manganese(IV) oxide: 4HCI (aq) + MnO2 (s) → MnCI2 (aq) + 2H...

Solved • Aug 27, 2018

Percent Yield

Q. Combining 0.277 mol of Fe2O3 with excess carbon produced 18.0 g of Fe.Fe2O3 + 3C → 2Fe + 3COWhat is the actual yield of iron in moles?What was the ...

Solved • Aug 27, 2018

Percent Yield

Q. A 0.182 g piece of solid aluminum reacts with gaseous oxygen from the atmosphere to form solid aluminum oxide. In the laboratory, a student weighs ...

Solved • Aug 22, 2018

Percent Yield

Q. Tetraphosphorus hexoxide (M = 219.9 g/mol) is formed by the reaction of phosphorus with oxygen gas P4 (s) + 3O2 (g) → P4O6 (s) If a mixture of 75 3...

Solved • Aug 21, 2018

Percent Yield

Q. Nickel (II) sulfate, used for nickel plating, is prepared by treatment of nickel (II) carbonate with sulfuric acid: NiCO3 + H2SO4 → NiSO4 + CO2 + H...

Solved • Aug 14, 2018

Percent Yield

Q. Hydrazine, N2H4, may react with oxygen to form nitrogen gas and water. N2H4 (aq) + O2 (g) → N2 (g) + 2 H2O (l) If 3.45 g of N2H4 reacts and produce...

Solved • Aug 13, 2018

Percent Yield

Q. Hydrazine, N2H4, may react with oxygen to form nitrogen gas and water. N2H4 (aq) + O2(g) → N2 (g) + 2H2O (l) If 3.25 g of N2H4 reacts and produces ...

Solved • Jul 31, 2018

Percent Yield

Q. A 14.579 g sample of CaCl2 was added to 12.043 g of K2CO3 and mixed in water. A 3.531 g yield of CaCO3 was obtained. What is the limiting reagent? ...

Solved • Jul 31, 2018

Percent Yield

Q. A reaction of 43.9 g of Na and 56.1 g of Br2 yields 66.0 g of NaBr. What is the percent yield? 2Na (s) + Br2 (g) → 2NaBr (s)

Solved • Jul 31, 2018

Percent Yield

Q. Ammonia, NH3, may react with oxygen to form nitrogen gas and water. 4NH (aq) +3O2 (g) → NH2 (aq) + 6H2O (l) If 2.25 g of NH3 reacts with 3.38 g O2 ...

Solved • Jul 24, 2018

Percent Yield

Q. Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (...

Solved • Jul 17, 2018

Percent Yield

Q. Actual yield is affected by a. None of these b. Reverse reactions that cause products to reform reactants c. Side reactions that compete with the m...

Solved • Jul 16, 2018

Percent Yield

Q. A reaction of 55.1 g of Na and 30.3 g of Br2 yields 36.9 g of NaBr. What is the percent yield? 2Na(s) + Br2(g) → 2NaBr(s) 

Solved • Jul 16, 2018

Percent Yield

Q. A reaction of 31.9 g of Na and 41.3 g of Br 2 yields 51.5 g of NaBr. What is the percent yield? 2Na(s) + Br2 (g) → 2NaBr(s) 

Solved • Jul 16, 2018

Percent Yield

Q. In making wine, glucose (C6H12O6) is fermented to produce ethanol (C2H5OH) and carbon dioxide (CO2), according to the following reaction.C6H12O6 → ...

Solved • Jul 11, 2018

Percent Yield

Q. For the following reaction, 3.63 grams of iron(III) oxide are mixed with excess hydrochloric acid. The reaction yields 1.16 grams of water. hydroch...

Solved • Jul 10, 2018

Percent Yield

Q. For the following reaction, 4.40 grains of zinc oxide are mixed with excess water. The reaction yields 3.93 grains of zinc hydroxide. zinc oxide (s...

Solved • Jul 10, 2018

Percent Yield

Q. Enter your answer in the provided box. When 19.3 g of methane and 35.9 g of chlorine gas undergo a reaction that has a 64.7% yield, what mass of ch...

Solved • Jul 4, 2018

Percent Yield

Q. Be sure to answer all parts.Methanol (CH4O), which is used as a fuel in high-performance racing cars, burns in the presence of O2 to form CO2 and H...

Solved • Jul 3, 2018

Percent Yield

Q. Be sure to answer all parts.Using the following chemical equation, answer each question. C(s) + O2 (g) → CO2 (g) (a) What is the theoretical yield ...

Solved • Jul 3, 2018

Percent Yield

Q. The reaction of 5.34 g of carbon with excess O 2 yields 13.75 g of CO2. What is the percent yield of this reaction?

Solved • Jul 3, 2018

Percent Yield

Q. Hydrazine, N2H4, may react with oxygen to form nitrogen gas and water. N2H4(aq) + O2(g) → N2(g) + 2H2O(I)If 3.65 g of N2H4 reacts and produces 0.65...

Solved • Jun 26, 2018

Percent Yield

Q. An iron nail rusts when exposed to oxygen. For the following reaction,  5.71 grams of iron are mixed with excess  oxygen gas. The reaction yields 7...

Solved • Jun 19, 2018

Percent Yield

Q. Each step in the process below has a 80.0% yield. The CCI4 formed in the first step is used as a reactant in the second step. If 5.00 mol of CH4 re...

Solved • Jun 12, 2018

Percent Yield

Q. Baking soda (NaHCO3) can be made in large quantities by the following reaction:NaCI + NH3 + CO2 + H2O → NaHCO3 + NH4CIIf 9.87 g of NaCI reacts with...

Solved • May 21, 2018

Percent Yield

Q. Each step in the process below has a 90.0% yield.CH4 + 4Cl2 → CCl4 + 4 HClCCl4 + 2 HF → CCl 2F2 + 2 HClThe CCI4 formed in the first step is used as...

Solved • May 12, 2018

Percent Yield

Q. A reaction of 31.9 g of Na and 43.5 g of Br_2 yields 48.1 g of NaBr. What is the percent yield?2Na (s) + Br_2 (g) --> 2NaBr(s)

Solved • May 12, 2018

Percent Yield

Q. The reaction for the industrial production of hydrogen cyanide is given below. 2CH4 + 2NH3 + 3O2 -->2HCN + 6H2O What mass of NH3 is required for...

Solved • May 12, 2018