05 A sample of limestone (containing calcium carbonate, CaCO3) weighing 438 mg is treated with oxalic acid, H2C2O4, to give calcium oxalate, CaC2O4. CaCO3(s) + H2C2O4(aq) → CaC2O4(s) + H2O(l) + CO2(g) The mass of the calcium oxalate produced is 469 mg. What is the mass percentage of calcium carbonate in this limestone?

Q: The mineral hausmannite, Mn3O4, which contains both manganese(II) and manganese(III) ions, is formed…

A: Given,  3 MnO2(l) → Mn3O4(s) + O2(g) (at 890°C) The mass of MnO2 reacted = 36.02 Mg.  The produced…

Q: A three-step process for producing molten iron metal from Fe2O3 is: 3Fe2O3 + CO → 2Fe3O4 + CO2…

A: Since CO is present in excess, Fe2O3 is the limiting reagent in the first step. Given mass of Fe2O3…

Q: 4. Urea, CO(NH₂)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics…

A:

Q: 23. Consider the reaction: 3 AgC2H;O2(aq) + Na3PO4(aq) → Ag:PO46) + 3 NaC2H3O2(aq) 4.000 g of silver…

A: "Since there are multiple subparts, we will answer only the first three subparts. If you require…

Q: A metallurgical firm needs to dispose of 27,432 gallons of waste sulfuric acid whose concentration…

A: Given,  Amount of waste of sulfuric acid to be dispose = 27432 gallons Molar concentration of…

Q: Please help Thank you

A: Given information: mass of LiOH = 1.00 g   The reaction is given as follows:

Q: The equation for the reaction between sodium hydrogen carbonate and sulfuric acid at room…

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Q: Urea (CH,N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with…

A: %Yield = (Obtained amount/calculated amount)x 100 Number of moles = Mass/molar mass Given that:'…

Q: Ammonia can also be synthesized by the reaction: 3H2(g) + N2(g)–→2NH3(g) What is the theoretical…

A: The given reaction for the synthesis of ammonia is,                          3 H2 (g) + N2 (g)…

Q: Some industrial plants for acetic acid react liquid methanol with carbon monoxide in the presence of…

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Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: 3. Write balanced chemical equations for the following chemical reactions. a. Lime (calcium oxide)…

A: a ) When lime (calcium oxide) with water to produce Slaked lime i.e Calcium hydroxide. The balanced…

Q: Iodine is prepared both in the laboratory and commercially by adding CI2 (g) to an aqueous solution…

A:

Q: (b) Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess…

A: From the given weight of the product pottasium nitrate and the percentage yield, we can easily…

Q: Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate the…

A: Given that, synthesis of ammonia using Haber bosch process as follows;     N2(g) + 3H2(g)   ---->…

Q: Bacterial digestion is an economical method of sewage treatment. The reaction is an intermediate…

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Q: Please answer questions 3a and 3b. Questions are provided in the attached image. Thank you.

A: Gravimetric analysis is a quantitative method through we can accurately determine the amount of…

Q: 1) The nerve gas Sarin, which was released in a Tokyo subway station in 1996, has a molecular…

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Q: Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate the…

A: Consider the given information is as follows; N2g    +     3 H2 g   →    2 NH3 g      Given…

Q: The equation for the reaction between sodium hydrogen carbonate and sulfuric acid at room…

A:

Q: The synthesis of maleic acid anhydride (C₄H₂O₃) can be accomplished by reacting benzene (C₆H₆) and…

A: From Maleic acid equation, mass of Oxygen, CO2, Benzene is calculated from the given values as…

Q: When sodium carbonate, Na2CO3 dissolves in water, it forms the sodium cation and the aqueous…

A: Balanced equation is an equation in the number of atoms of reactants or products are equal on the…

Q: Aspirin is prepared by the reaction of salicylic acid (C7H6O3) with acetic anhydric to the following…

A: Given that , The mass of salicylic acid = 5 gram The molar mass of salicylic acid= 138.121 gm/mol

Q: If a sample of coke is 95% carbon by mass, determine the mass of coke needed to react completely…

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Q: Automotive air bags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed.2NaN3(s)…

A: Given, 2 NaN3 (s) ⟶ 2 Na (s) + 3 N2 (g)Volume of N2 = 73.6 LDensity of N2 = 1.25 g L-1 To find, Mass…

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A: The solution is provided in the next step:

Q: Many important metals occur as sulfide, arsenide, and antimonide minerals, especially in the Sudbury…

A: Answer :-  a) Mass of NiO produced = 1.027 kg  b) Mass of PbO produced = 2.047 kg  c) Air required…

Q: Thionyl chloride, SOCl2, is a widely used source of chlorine in the formation of pesticides,…

A: Welcome to bartleby !  Introduction :  We have to calculate percentage yield. Actual weight = 1264 g…

Q: 5. The reaction 2C2H2(g) + 502(g) → 4CO2(g) + 2H2O(1) is a a. combustion reaction

A: Combustion reaction is the reaction in which a reactant reacts with oxygen gas to form CO2 and H2O…

Q: Methyl salicylate (oil of wintergreen) is prepared by heating salicylic acid, C, H O3, with…

A: Salicylic acid reacts with methanol and forms methyl salicylate. This is an esterification reaction.…

Q: Acetyl Salicylic acid is prepared by heating salicylic acid, C7H6O3, with acetic anhydride, C4H6O3…

A: To solve this problem we will use the given formula.  Percent yield = (Actual yield /Theoretical…

Q: 3. Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is…

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Q: A three-step process for producing molten iron metal from Fe2O3 is: 3Fe2O3 + CO → 2Fe3O4 + CO2…

A: The moles of iron produced from 390.kg of iron oxide can be calculated as

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A:

Q: Hematite, Fe₂O3, is an important ore of iron. (An ore is a natural substance from which the metal…

A:

Q: 6. An experiment that led to the formation of the new field of organic chemistry involved the…

A: Urea, CN2H4O is formed by the controlled reaction of ammonia and carbon dioxide: The stoichiometry…

Q: Ammonia can also be synthesized by the reaction: 3H,(g) + N2(g) →2NH;(8) What is the theoretical…

A: Answer: 29.58 Kg is the theoretical yield of ammonia.

Q: Coal gasification is a process that converts coal into methane gas. If this reaction has a…

A: If the percent yield is 88.5 % 2 C(s) + 2 H2O(l) --> CH4(g) + CO2(g) Mass of Carbon = 1070 g…

Q: Ethylene glycol, C₂H6O2, is used as antifreeze for automobile engines. If you want to produce 2.00…

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Q: If the gasoline reacts completely with excess oxygen (from the air) to form CO2 and H2O, what is the…

A: Given :- mass of gasoline = 62.0 kg  To be calculated :-  Mass of CO2  Mass of H2O

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A: In the given precipitation reaction, Amount of Rh2(SO4)3 used = 0.540 g Amount NaOH used = 0.209 g

Q: Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess potassium…

A: Complete balanced equation for the given question is as follows: HNO3 + KOH (excess)  → KNO3 + H2O…

Q: 2NH3(aq) + CO, (aq) → CH,N,O(aq) + H,O(1) In an industrial synthesis of urea, a chemist combines…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution…

A: Given, 82.1 g of iodine, I2

Q: Methyl salicylate (oil of wintergreen) is prepared by heating salicylic acid, C7 Hg O3, with…

A:

Q: What is the maximum mass of Na3AlF6 formed?

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Q: 33. What is the theoretical yield of aspirin if 185 kg of salicylic acid is allowed to react with…

A: Given mass of salicylic acid = 185 kg  Mass of acetic anhydride = 125 kg  Given yield = 182 kg

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaClNaCl to give Cl2Cl2,…

A: A chemical plant uses electrical energy to decompose aqueous solutions of NaCl to give Cl2, H2, and…

Q: Thionyl chloride, SOCl2, is a widely used source of chlorine in the formation of pesticides,…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".