Have you ever noticed that when organic compounds decompose emit odors? Well, the rotten smell of a decaying animal carcass is partially due to a nitrogen-containing compound called putrescine. Elemental analysis of this compound showed that it consisted of 54.50 % Carbon, 13.73% hydrogen and 31.77% nitrogen. If the molecular weight (molar mass) of putrescine is 88.16 g/mol, what will be the molecular formula of putrescine?

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Mass percent expresses the solute concentration in any mixture. The division of weight of dissolved…

Q: When 1.849 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus, 6.249 grams…

A: Combustion reaction involves the reaction of the compound with oxygen. Combustion of hydrocarbon…

Q: How  many grams of  carbon can be formed by heating 10.0 g of    sugar, C 12H 22O 11?   According…

A: C12H22O11 -----------> 12 C    +    11H2O

Q: Ethanol, the alcohol contained in alcoholic beverages, is composed of 52.2% C 13.0% H, and oxygen.…

A:

Q: What is the formula weight of the compound? (Mg = 24.31 amu, Cl = 35.45 amu, O = 16 amu, H = 1.01…

A: Formula:  MgCl2.H2O Mass of Mg = 24.31amu Mass of Cl = 35.45amu Mass of H = 1.01 amu Mass of O = 16…

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: [References] A sample of limestone and other soil materials was heated, and the limestone decomposed…

A: Calcium carbonate decomposes into calcium oxide and carbon dioxide. The equation for the balanced…

Q: When 3.232 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus, 11.10 grams…

A: Data given: Mass of sample = 3.232 g Mass of CO2 = 11.10 g Mass of H2O = 1.818 g Molar mass of the…

Q: You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O,…

A: Given information: Mass of sample = 255 mg Mass of carbon dioxide = 561 mg Mass of water = 306 mg

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

A: Reaction equation: C7H6O3 + C4H6O3  →                           C9H8O4 + C2H3O2Mass of Salicylic…

Q: The study of sulfur-nitrogen compounds is an active area of chemical research, made more so by the…

A: First determine the moles of sulfur. Given mass of sulfur is 2.288g. Then determine the moles of…

Q: Explain what the subscript in the formula for a compound indicates. Explain what the coefficient in…

A: Since you have posted multiple short questions, as per our company guidelines we are supposed to…

Q: A compound is composed of 54.50% O, 4.58% H and 40.92% C by mass. If the compound has a formula…

A: Empirical formula- It represents simplest whole number ratio of various atoms present in the…

Q: What is the mass (in g) of 0.953 mol of ethanol, CH3CH₂OH? The molar mass of ethanol is 46.07…

A: Given : molar mass = 46.07 g/mol                          Mole = 0.953 mol

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: lodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution…

A: The balanced reaction taking place is given as, => 2 NaI (aq) + Cl2 (g) -------> I2 (s) + 2…

Q: The empirical formula of a compound was determined to be P2O3  The molecular weight of the compound…

A:

Q: the fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Number of moles of butane is calculated by dividing the amount in grams by molar mass.

Q: Provide answer to the following

A: Density of a particular substance is the compactness of atoms present in it. Density can be…

Q: Consider the reaction of ethylene (C 2H 4) and water to form ethanol (C 2H 6O), which was mentioned…

A: Given: The theoretical yield of  ethanol is 23 g. The actual yield of ethanol is 15 g.…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: The solution is given below -

Q: Q8) Fermentation is a complex chemical process of wine making in which glucose is converted into…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1252. An unknown organic compound weighing 1980 mg is fully combusted at high pressure, yielding of…

A:

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following…

A: Given Chemical Reaction: 2NH3 + 3O2 +2CH4 -------> 2HCN +6H2O. To solve this problem we will be…

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: 4.2 A compound that can be sampled or "smelled by sniffing your armpits or someone's unwashed feet,…

A: The percent of carbon, Hydrogen, Oxygen is 55.80 %, 7.03 %, 37.17 % respectively

Q: A compound has a molar mass of 28.06 g. What is its chemical formula if carbon and hydrogen are…

A: In this question, chemical formula of the compound is to be determined which consists of carbon and…

Q: The molar mass of aspirin is 180.16 g/mol. What is the theoretical yield in grams, for the aspirin…

A: NOTE : Since the concentration of acetic anhydride is not given, I'm assuming it is present in…

Q: Direct reaction of iodine (I2) and chlorine (Cl2) produces an iodine chloride, I,Cly, a bright…

A: As per the given data we have Mass of Iodine=0.678g Mass of IxCly=1.246g Molar mass of…

Q: Ethylene glycol, the substance used in automobile antifreeze, is composed of 38.7% C, 9.7% H, and…

A: Let us assume we have 100 g of Ethylene glycol, then percentages become grams as follows –  mass of…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: We know that Molar mass of CO2=44g/mol Mass of CO2=2.14g Moles of CO2=MassMolar mass…

Q: Acrylonitrile (C3 H3N) is the starting material for many synthetic carpets and fabrics. It is…

A: First we have to determine the limiting reagent. Limiting reagent is that which consumed first or…

Q: Silicon nitride (Si3N4) is a desirable ceramic material that withstands high temperatures. Si3N4 can…

A: (a)

Q: A molecular compound contains carbon, hydrogen, and oxygen atoms in its formula. A chemical analysis…

A:

Q: A molecule has an empirical formula of CH 2O and a molar mass of 179.9 g/mol. What is the molecular…

A: The empirical formula describes the smallest whole number ratio of atoms present in a compound.…

Q: A few antacids contain aluminum hydroxide, Al(OH)3 (molar mass= 78.00 g/mol). Aluminum hydroxide…

A:

Q: A newly discovered metalloprotein, which contains four atoms of Fe per molecule of protein, is found…

A: Given: Percent by mass of Fe in the compound = 0.747 %. And the number of atoms of Fe per molecule =…

Q: An impure sample of table salt (NaCl) that was dissolved in water and treated with silver nitrate to…

A: Mass of the impure sample = 1.741 g  Mass of AgCl formed = 4.084 g

Q: Ethanol (C 2H 6O, molar mass 46.07 g/mol) is synthesized by reacting ethylene (C 2H 4, molar mass…

A: Given that:  molar mass of Ethanol = 46.07 g/mol molar mass of ethylene = 28.05 g/mol mass of…

Q: The molar mass of M(OH)4 by the hypothetical metal M, is 190.052 g/mol what is the molar mass of the…

A: Molar mass of a compound is equal to the sum of the molar masses of all the elements. The molar mass…

Q: What number of molecules (or formula units) are present in 3.07 g of each of the following…

A: Given,  Mass of each compound = 3.07 g  Then,  Find number of molecules in = ?  a). NH3  b). N2H4…

Q: When ammonia is mixed with hydrogen chloride (HCl), the white solid ammonium chloride (NH4Cl) is…

A: Given: The mass of ammonia is 10 g. The balanced chemical reaction is, Find the limiting reagent of…

Q: When 1.915 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 6.474 grams…

A: The general equation for the combustion reaction of hydrocarbon, CxHy, in the presence of oxygen is:…

Q: One of the hydrates of MgI2 is magnesium iodide octahydrate .A 89.9 gram sample of MgI2  8 H2O was…

A: Hydrated salts have water within their crystals when the crystals are formed from water.Anhydrous…

Q: Q8) Fermentation is a complex chemical process of wine making in which glucose is converted into…

A: (8) C6H12O6   →   2 C2H5OH + 2 CO2  glucose              ethanol  180.16 g             92.14 g…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: The decomposition reaction of CaCO3 can be written as, => CaCO3 (s) ---------> CaO (s) + CO2…

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".