Aspirin (C9H8O4) may be synthesized by mixing salicylic acid (C7H6O3) with excess acetic anhydride (C4H6O3). When 2.0 g of salicylic acid is mixed with excess acetic anhydride, 1.7 g of aspirin is collected. What is the percent yield of this reaction? The balanced equation is C7H6O3 + C4H6O3  C9H8O4 + C2H4O2 A.98 % B.85 % C.77 % D.65 % E.55 %

Q: Determine the theoretical yield of aspirin for the reaction. Express your answer using three…

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Q: Silicon, which occurs in nature as SiO2, is the material from which most computer chips are made. If…

A: When two reactive compounds are mixed, then they react according to the stoichiometry of the…

Q: How many grams of potassium chlorate are there At the completion of reactions?

A: Given that, the decomposition reaction of potassium chlorate, KClO3. We have to tell the amount of…

Q: Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3C4H6O3) with salicylic…

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Q: A 3.82-g sample of magnesium nitride is reacted with 7.73 g of water.…

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Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

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Q: The combustion of ammonia in the presence of oxygen yields NO2 and H2O: 4 NH3(g) + 7 O2(g) → 4…

A: Combustion is an exothermic reaction that leads to the liberation of heat during reaction. In this…

Q: When the following equation is balanced, how many water molecules are present in the reactants?…

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Q: consider the reaction  4HCl(aq)+MnO2(s)--->MnCl2(aq) + 2H2O(l) +Cl2 (g) A sample of 48.9 g MnO2 is…

A: The balanced equation is  4HCl(aq)+MnO2(s)--->MnCl2(aq) + 2H2O(l) +Cl2 (g)   Molecular weight of…

Q: Consider the following balanced reaction: 2C4H10 + 1302 → If 0.237 mol C4H10 and 1.65 mol O2 are…

A: given :-  2C4H10 + 13O2 → 8CO2 + 10H2O no.of moles of C4H10 = 0.237 mol no.of moles of O2 = 1.65 mol…

Q: A sample of 0.55 g of carbon dioxide was obtained by heating 1.45 g of calcium carbonate. What is…

A: Percent practical yield is calculated if we know the theoretical yield of the reaction and the…

Q: A sample of 109.4g of calcium oxide was obtained by heating 291.9g of calcium carbonate. What is the…

A: The given balanced chemical reaction is as follows,

Q: Consider the unbalanced equation for the combustion ofbutane:

A: The entire number of atoms available on the reactants' side should match the net number of atoms…

Q: Methanol has tremendous potential to be used as an alternate fuel. Carbon monoxide gas reacted with…

A: A student reacted 58.9 g of H2 (g) with excess CO (g) to produce methanol reaction will be  2H2(g) +…

Q: Consider the following balanced reaction: 2C4H10 + 1302 → 8CO2 + 10H20 If 0.237 mol C4H10 and 1.65…

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Q: If a reaction vessel initially contains 9 mol A and 8 mol B,how many moles of A, B, and C will be in…

A: The reactant which is completely consumed in a chemical reaction and limits the product formation is…

Q: Determine the theoretical yield of carbon dioxide, in grams, when 14.32 grams of  O2 reacts…

A: A numerical problem based on mole concept that is to be accomplished.

Q: Example: A reaction mixture for the combustion of octane contains 5.0 moles of octane and 50. moles…

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Q: Consider the balanced equation SiO2(s)+3C(s)→SiC(s)+2CO(g) Complete the following table showing the…

A: The balanced chemical reaction is given below.

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

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Q: A student combines 15.0 g FeS, with excess 02, which react according to the balanced equation shown…

A: Now, mass of one reactant is given and other reactant is present in excess. The amount of product…

Q: Determine the limiting reactant and mass of CO2 gas produced when 11.0 g of Na2CO3 is added to a…

A: The reaction between Na2CO3 and HCl is  Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2 Moles = Mass/ Molar Mass…

Q: Determine the limiting reactant in this reaction. Calculate the amount in grams of CO2 from the…

A: Percent yield is the ratio of actual yield to the theoritical yield.

Q: Consider the following reaction Ca(s) + 2HCl(aq) --> CaCl2(aq) + H2(g) What mass of Ca is needed…

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Q: In one experiment, 12.0 g of PCl5 was slowly added to 15.0 g of H2O according to the following…

A: Limiting reagent of a reaction is the compound which is completely consumed during the reaction. The…

Q: Consider the combustion of methane.   CH4(g)+2O2(g)→CO2(g)+2H2O(g)  Suppose 2.5 mol  of methane are…

A: Given:Moles of CH4 = 2.5 mol.Moles of O2 = 3.5 mol.

Q: A sample of 8.61 g8.61 g of liquid 1‑propanol, C3H8O,C3⁢H8O, is combusted with 64.6 g64.6 g of…

A: It's a multiple part question.   Given information, Mass of 1-propanol = 8.61 g Mass of oxygen gas =…

Q: Aluminium and chlorine gas combine to form aluminium chloride.    What is the balanced equation for…

A: 1. 1.5 mol AlCl32. 2.0 mol AlCl33. 1.5 mol of AlCl34. 0.75 moles of Cl2 remain at the end of the…

Q: The following two-step process has a 60.0 % yield for each step. CH4 + 4 Cl2 –→ CCl + 4 HCl CCl4 + 2…

A: Given: The yield percentage of each step = 60.0% Moles of CH4 = 6.00 mol.

Q: A 3.82-g sample of magnesium nitride is reacted with 7.73 g of water.                         Mg3N2…

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Q: Consider the reaction: 4A + 3B - 3C + 4D A student in our chemistry laboratory mixes 6.4 mol…

A: The limiting reagent in a reaction is a reactant that is totally consumed when the reaction is…

Q: an iron nail has a mass of 1.12 g, what mass of rust would form

A: Number of moles = mass / molar mass  Number of moles of Fe = mass of Fe /55.845gmol-1

Q: Butane, C4H10C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

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Q: Balance each reaction, then suppose exactly 13.3 g of each reactant is taken. Indicate which…

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Q: The combustion of liquid ethanol (C2H5OH) produces carbon dioxide and water. After 4.62 mL of…

A: The balanced reaction of ethanol combustion is given as - C2H5OH + 3O2 -----> 2CO2 + 3H2O It…

Q: CH4(g)   +    2 O2(g)  ------->   CO2(g)   +    2 H2O(g) What mass of water is produced by the…

A: 1- First determine the moles of methane :  moles of methane = ( mass / molar mass)  moles of methane…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Given: When morphine undergoes combustion, carbon dioxide is produced. Mass of mixture            =…

Q: 6. Magnesium oxide can be produced by heating magnesium metal in the presence of oxygen. The…

A: The balance chemical reaction :  2Mg(s) + O2(g) ---> 2MgO(s)  Mass of Mg = 10.1 g  Mass of O2 =…

Q: An aqueous solution containing 9.20 g of lead(II) nitrate is added to an aqueous solution containing…

A: Balancing of chemical reaction- It consists of reactant (starting material) and products…

Q: Limestone (CaCO3) is used to rem heated to form lime (CaO), which 74.2% yield in the overall…

A: The reaction involved are., CaCO3 ---> CaO + CO2 CaO + SO2 ---> CaSO3 S + O2 --> SO2

Q: For the following reaction,23.1 grams of carbon disulfide are allowed to react with 89.2 grams…

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Q: n the reaction of 10.00 mL of FeCl3{aq) and 12.4 g of <½C2O4laq). you calculate that 9.58 g of…

A: Volume of FeCl3 = 10.00 mL  Mass of K2C2O4 : 12.4 g  Mass of K3FeC2O43H2O  = 9.58 g

Q: 12.Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog:…

A: 1-First we will convert grams of P2O5 to moles :  Molar mass of P2O5 = 142gmol-1  Moles of P2O5 = (…

Q: Methanol (CH 4O), which is used as a fuel in highperformance racing cars, burns in the presence of…

A: According to the given balanced chemical reaction, the two moles of methanol are reacting with three…

Q: For the chemical reaction, 2 HCI + Ca(OH)2 CaCl, + 2 H,O what mass of calcium hydroxide in grams is…

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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".