Methanol, which is present in mentholated cough drops, is an organic compound containing only C, H and O. When a 0.2010-g sample is analyzed by combustion, 0.5658 g of CO2 and 0.2318 g of H2O are obtained. What is the empirical formula of methanol?

Q: Boron forms a series of compounds with hydrogen, all with the general formula B₂ Hy. X BH₁(s) +…

A: Given: BxHys+excess O2g→x2B2O3s+y2H2Og Weight of BxHy is 0.207 g Weight of B2O3 is 0.590 g Molecular…

Q: Anabolic steroids are sometimes used illegally by athletes to increase muscle strength. A forensic…

A: Mass of sample = 1.20 g  Mass of CO2 = 3.516 g  Mass of water vapor = 1.007 g % of C =3.516 g of…

Q: Thermite is a metal powder mixture used frequently in pyrotechnics and metal construction work. It…

A:

Q: 1. Methanol can be produced  by the reaction between carbon monoxide and hydrogen. Suppose 68.5 kg…

A: Answer: This question is based on stoichiometry of the reaction where compounds always react in the…

Q: Titanium(IV) oxide is a bright white solid that is used as a paint pigment (titanium white). It is…

A: Titanium oxide is bright white solid. It is made by the following Reaction:  FeTiO3 + H2SO4 → TiO2 +…

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A: To find mass of product formed.

Q: To a crucible and cover weighing 33.392 g is added a sample of a copper (II) chloride hydrate (CuCl2…

A: Given data, Mass of crucible + cover = 33.392g Mass of crucible + cover + sample = 34.405g Mass of…

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

A: The reaction of the combustion of morphine is: 4C17H19NO3+85O2→68CO2+38H2O+4NO2 Calculation of no.…

Q: Methyl salicylate (oil of wintergreen) is prepared by heating salicylic acid, C,HO3, with methanol,…

A:

Q: When 0.6943 g of a compound is subjected to combustion analysis it produced 1.471 g CO2 and 0.391 g…

A: Given:   Mass of compound is 0.6943 g. Molar mass of compound is 172 g/mol. Mass of carbon dioxide…

Q: In air, nitric oxide gas reacts with oxygen to produce nitrogen dioxide, which appears brown in…

A: Nitric oxide reacts with oxygen to produce nitrogen dioxide. The equation for the balanced chemical…

Q: Hydrogen cyanide, a highly toxic compound, is made by the following reaction: 2 CH4(g) + 2 NH3(g) +…

A:

Q: If you add 1.0 x 10^3 g of ethylene glycol as an antifreeze to a 4.0 kg of water in the radiator of…

A: Mass of ethylene glycol= 1.0×103 g gram molar mass of ethylene glycol =62 g  The calculation of…

Q: Methanol, CH3OH, is used in racing cars because it is a clean-burning fuel. It can be made by this…

A: Write the expression for percentage yield. Percentage yield =Theoretical yieldActual yield×100

Q: if you have 1 mol Xe and 1 mol F2,how many moles of XeF4 ,can you create in the following chemical…

A: • The given balanced chemical equation is,                   Xe(g) + 2 F2(g) → XeF4(g)    • The…

Q: Consider the following reaction: Al(OH)3 (s) + 3 HCl (aq) →AlCl3 (aq) + 3 H2O (l) a. What mass of…

A: First Calculate mole of Al(OH)3 by mass/molar mass  Then use mole mole relationship  1mol Al(OH)3…

Q: reaction product is produced in a 76.3% yield. If the actual yield of the isolated product is 31.1…

A: Percentage yield= (actual yield/theoretical yield)*100% Let m=theoretical yield 76.3 =(31.1/m)*100…

Q: Sugars can be metabolized to lactic acid by Streptococcus mutans, a bacterium that lives in the oral…

A: Given : Mass percent of C = 40.0 % Mass percent of H = 6.71 % Mass percent of O = 53.3 % And molar…

Q: A compound containing only carbon, hydrogen, and oxygen is subjected to elemental analysis. Upon…

A: Given information: Mass of sample = 0.7916 g Mass of carbon dioxide = 1.581 g Mass of water = 0.6474…

Q: A silvery-white, lightweight malleable metal is used in a huge variety of products including cans,…

A: Given: Mass of Al2O3 reacted=8.25×105 g Mass of Carbon reacted=7.50×105 g Yield=35%

Q: Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as…

A: The question is based on the principle of elemental analysis. by analysing the given amounts , we…

Q: Solutions of sodium hypochlorite, NaCIO, are sold as a bleach (such as Clorox). They are prepared by…

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

Q: Ammonia gas can be prepared by the following reaction: CaO(s) +2 NH, Cl(s) → 2 NH3 (g) +H20(g) +…

A:

Q: Which of the reactant is limiting reagent? Calculate the mass of (NH2)2CO How much excess reagent…

A: Ammonia + Carbon dioxide → Urea + waterBalanced Chemical Equation…

Q: Thermite is a metal powder mixture used frequently in pyrotechnics and metal construction work. It…

A: Molar mass of Fe2O3 =159.7 g/molMolar mass of AI =27.0 g/mol

Q: Solutions of sodium hypochlorite, NaClO, are sold as a bleach (such as Clorox).  They are prepared…

A: In chemical reaction reactants react to form the products. Each chemical reaction is characterised…

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

A: Mass % of morphine = Mass of morphine x 100/Mass of mixture

Q: 4.84. Aluminum chloride (AICI3) is used as a catalyst in the production of polyisobutylene, which is…

A: Given, Mass of Aluminium (Al) metal reacts = 2.70 g Mass of chlorine (Cl2) gas reacts = 7.10 g…

Q: Naphthalene, the active ingredient in one variety of mothballs, is an organic compound that contains…

A: Given, mass of naphthalene is 20.10 mg            Mass of CO2 formed =69 mg            Mass of H2O…

Q: For the chemical reaction,   2NaOH+H2SO4⟶Na2SO4+2H2O   what mass of sulfuric acid in grams is…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

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

A: Molar mass of morphine is 285.34 g/mol. When a mixture of NaCl and morphine undergoes combustion,…

Q: What is the theoretical amount of H2 that can be produced by the reaction between 3.23 g of Ca and…

A: Given Ca = 3.23 gram and water is 2.33 gram

Q: Industrial production of hydrogen gas uses the reaction shown below. If 1.00 metric ton of propane…

A: Theoretical yield :-  The maximum amount of the product formed when reactants are consumed as per…

Q: Small quantities of oxygen gas can be generated in the laboratory by heating potassium chlorate. 2…

A: Given stoichiometric equation is                                  2 KClO3(s)           →         2…

Q: Gaseous hydrogen and oxygen can be prepared in the laboratory from the decomposition of gaseous…

A: Moles = mass / molecular mass  (molecular mass of H2O = 1X2 + 16 = 18 g/mol)  Hence, moles of H2O…

Q: Leaded gasoline contains an additive to prevent engine "knocking". However, because of the…

A: Given data: Mass of sample = 12.1 g mass of CO2 = 30.2 g mass of H2O = 14.8 g

Q: Industrially, nitric acid is produced by the Ostwald process represented by the following equations:…

A: Percent yield is defined as the percentage ratio of the actual yield to the theoretical multiplied…

Q: Isoeugenol is the compound which gives the characteristic odor to nutmeg and contains carbon,…

A:

Q: Naphthalene, the active ingredient in one variety of mothballs, is an organic compound that contains…

A: Given, Mass of CO2 = 69.00mg Mass of H2O = 11.30mg Mass of naphthalene = 20.10mg

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A: Given chemical equation : 4NH3(g) + 5O2(g) -----> 4NO(g) + 6H2O(g) Mass of NH3 given = 72.5g Mass…

Q: organic compound containing C, H, and O is burned completely in oxygen, 8.1 g of CO2 and 4.956 g of…

A: Mass of CO2 = 8.1 g molar mass of CO2 = 44.0 g/mol Moles of CO2 = mass/MM    = 8.1/44 = 0.184 mol…

Q: Morphine (C1„H19NO3) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Balanced Combustion reaction of morphine :  4C17H19NO3 + 85O2 ....> 68CO2 + 38H2O + 4NO2 Mass of…

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

A: Given: mass of mixture = 2.00 g mass of CO₂ = 3.97 g molar mass of CO₂ = 44.01 molar mass of…

Q: Mercury can be obtained by reacting mercury(II) sulfide, HgS, with calcium oxide, CaO. How many…

A: Given preparation reaction of liquid Mercury; 4HgS(s) +   4CaO(s)  --->   4Hg(l)  + 3CaS(s)  +…

Q: 2 NaCl + 2 H2O ⟶ 2 NaOH + H2 + Cl2 If 2345 g of NaCl are reacted completely in the following…

A: Here we are given the reaction -  2 NaCl + 2 H2O ⟶ 2 NaOH + H2 + Cl2 Mass of NaCl = 2345 g  Moles =…

Q: DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction: 2Cg…

A: The balanced reaction given is  Given : Mass of chloral i.e C2HOCl3 taken = 470 g And mass of…

Q: The solid fuel in the booster stage of the space shuttle is a mixture of ammonium, perchlorate and…

A: The question is about to balance the given Chemical Equation and find the amount of Aluminum…

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".