A student starts with 0.627 g0.627 g of pure 4‑aminobenzoic acid, (molar mass 137.14 g/mol137.14 g/mol) and ends up with 0.619 g0.619 g of benzocaine (molar mass 165.19 g/mol165.19 g/mol). Given that ethanol is in excess, what are the theoretical and percent yields for this reaction? Assume all starting material is converted to product when calculating the theoretical yield.

Q: Ethylene glycol (MW=62.0 g/mol) is used as automobile antifreeze. Combustion analysis of a 23.46 mg…

A:

Q: 5. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

A:

Q: 5. A student reacts 6.00 g of ammonium sulfide with 6.00 g of zinc (II) acetate. Upon completion of…

A: Limiting reactant :-  A reactant which is present in lesser number of molrs than required as per…

Q: If I have a beaker with sodium carbonate which weighs 31.16g mass of the empty beaker is 29.08g what…

A: Since mass of empty beaker is 29.08 g  Hence mass of sodium carbonate = mass of beaker with sodium…

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

A: Given: Mg(s)+O2→MgO(s) Mass of Mg=10.1 gMass of O2=10.5 gMass of MgO=11.9 g To determine: Limiting…

Q: A student reacts benzene, C6H6, with bromine, Br2, to prepare bromobenzene, C6H5Br, and HBr. C6H6 +…

A:

Q: Asprin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid…

A: The objective of this question is to determine the limiting reactant in the reaction of acetic…

Q: 9. Consider the reaction: SO3(g) + H2O(l) ----→ H2SO4(aq) A chemist allows 61.5 grams of SO3 and…

A:

Q: Calculate the number of pounds of CO, released into the atmosphere when a 17.0 gallon tank of…

A: The balanced reaction of gasoline with O2 is: 2C8H18+25O2→16CO2+18H2O Conversion of gallons into L:…

Q: A website promoting the use of alternative energy vehicles and hybrid technologies claims that, "A…

A: Gallons original quantity = 40 gallons CO2 produced from 40 gallons = 750 lbs. Gasoline primary…

Q: Iron reacts with oxygen at high temperatures to form iron(III) oxide. 4 Fe(s) +30,(g)-2 Fe,O,(s)…

A: We have to predict limiting reactant, theoretical yield and percentage yield.

Q: Burning magnesium in the presence of oxygen forms magnesium oxide. Write the balanced equation. If…

A: Given, mass of Mg reacted = 10.2 g           mass of O2 reacted = 10.5 g           mass of product…

Q: Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2 ), a dark-brown gas:…

A:

Q: 4. The combustion of ethanol (C₂H5OH) produces carbon dioxide and water. In the reaction, 3.50 g of…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Many computer chips are manufactured from silicon, which occurs in nature as SiO2SiO2. When SiO2SiO2…

A: The reaction is, SiO2(s)+2C(s)→Si(l)+2CO(g) Given, The amount of silicon dioxide =156.7kg. The…

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: Paylben

A: The objective of this question is to identify the limiting reagent in the given chemical reaction…

Q: Ethyl butyrate, CH3 CH₂ CH₂ CO₂ CH₂ CH3, is an artificial fruit flavor commonly used in the food…

A: we have to calculate the percentage yield of the given reaction

Q: NaCI(s) + H,SO (aq) →_ Na,so,(s) + HCI(g) - Balance the equation above. If 32.5 g NaCl and 24.5 g…

A: Balancing the equation, 2NaCI(s) + H2SO4 (aq) →_ Na2SO4(s) + 2HCI(g)  Multiply the NaCl with 2  and…

Q: If we react HCl with excess NaOH one of the products will be NaCl. If we assume that all of the Cl…

A: Given, Mass of HCl = 11.7 g Molar mass of HCl = 36.5 g/mol Mass of NaCl produced = 15.9 g Molar mass…

Q: Consider the reaction. 2 Pb(s) + 0,(g) – 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead,…

A:

Q: Blast furnaces extra pure iron from the iron(III) oxide in iron ore in a two step sequence. In the…

A: Here we are required to find the mass of carbon needed to prepare 7kg of iron in Two step where…

Q: Use 1 decimal point for all atomic masses. 82.1 g of Ni3C(s) are reacted with 1.80 g of H2(g) by the…

A: The given reaction is shown below.

Q: Discuss the results for the physical tests briefly. Do you think the experiment was successful in…

A: Solution: We know the esterification reaction, where the carboxylic acid and an alcohol racts to…

Q: For the following reaction, 5.37 grams of carbon tetrachloride are mixed with excess methane (CHA).…

A:

Q: 32. For the equation given: 2C₂H4 + 60₂ 4H₂O If 14.0 grams of C₂H4 is reacted and the actual yield…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: Consider the following balanced reaction: Pb(s) + 2 Cl;(g) → P6CI,(s) Starting with 30.0g of Cl2 and…

A: Consider the following balanced reaction: Pb(s) + 2Cl2(g) → PbCl4(s) The mass of Cl2 given = 30.0 g…

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

A: The given chemical reaction is  PCl5s + 4H2Ol →H3PO4aq + 5HClg. The mass of PCl5 is 12.0 g. The mass…

Q: Aspirin (C9H8O4) is synthesized by reacting salicyclic acid (C7H6O3) with acetic anhydride (C4H6O3).…

A:

Q: In a reaction, 0.77 kg of V,O; are reacted with 0.88 kg of Ca as the following chemical Equation:…

A: This a question based on stoichiometric calculations of a reaction.  Which can be solved step by…

Q: Record all masses to the maximum number of Run 1 Run 2 sig figs 200°C 400°C 1. Mass of beaker 81.061…

A:

Q: The following two-step process has a 30.0 % yield for each step. CH4 + 4 Cl2 + CCL + 4 HCI CC4 + 2…

A: Given that: The % yield of each step = 30.0% Moles of CH4 used= 4.00 mol.

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

A: We have to calculate the mass of HBr left

Q: The formation of potassium chlorate, KClO3, can be represented by the equation (unbalanced): K (s)…

A: Potassium reacts with chlorine and oxygen to form potassium chlorate. The equation for the balanced…

Q: Consider this given balanced reaction for the combustion of propane:  C3H8(g) + 5 O2(g) --> 3 CO2(g)…

A: It is an example based on stoichiometry

Q: Use 1 decimal point for all atomic masses. 12.3 g of NCl3(g) are reacted with 0.605 g of H2(g) by…

A: A limiting reactant is a reactant that is completely converted to products. Once all the limiting…

Q: Use the equation below to answer the following question: Fe+Cl2-->FeCl2   A student wants to prove…

A: The given reaction is Fe +Cl2 →FeCl2. Limiting reactant is the reactant that is available in a…

Q: Refer to this equation:  3SCl2 + 4NaF  --> SF4 + S2Cl2 + 4NaCl  64.0 grams SCl2 is reacted with…

A: Given chemical equation:  3SCl2 + 4NaF  --> SF4 + S2Cl2 + 4NaCl  Number of moles =(given…

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".