The characteristic odor of decaying flesh is due to the presence of various nitrogen-containing compounds. One such compound, called putrescine, was analyzed and found to contain 54.49% carbon, 13.72% hydrogen, and 31.78% nitrogen by mass. If the molar mass of putrescine is known to be between 85 and 105, what is its molecular formula?

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: The empirical formula of a compound is NO2, and its molar mass is about 92.g. What is its molecular…

A: We know the relation between empirical formula and molecular formula is,Molecular mass = n…

Q: A high school student was recently diagnosed with stage 1 cancer and his specialist advised that he…

A: Mass percent of  Platinum = 65.0  Nitrogen = 9.34  Hydrogen = 2.02 Chlorine = 23.63  Molar mass =…

Q: Acetaminophen has a elemental composition of 63.56% carbon, 6.00% hydrogen, 9.27% nitrogen and…

A: Step 1: carbon elemental composition /12, hydrogen composition /1, nitrogen composition /14, oxygen…

Q: Malonic acid is used in the manufacture of barbiturates (sleeping pills). The composition of the…

A: To calculate the mole of each elements present in Malonic acid: Given: 34.56 % of C, 3.9 % of H, and…

Q: Part 1: Calculate the mass percentage of N in N2O4. Report your answer to 3 significant figures.…

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Q: A certain gasoline additive that boosts the octane rating of gasoline is made of the elements C, H,…

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Q: The characteristic odor of decaying flesh is due to the presence of various nitrogen- containing…

A: Answer:The molar mass of any substance is the mass present in one mole of the substance and the…

Q: A compound was found have the following mass percentages; C 39.99%, H 6.73%, Oxygen 53.28%. What is…

A: The question is based on the concept of stoichiometry.Based on mass percentage provided, we need to…

Q: While cleaning out an old shelf in the lab, a chemist discovered a bottle labeled "HIGHLY TOXIC".…

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Q: A gaseous compound has the empirical formula NO2. If its molar mass is approximately 92 g/mol, what…

A: Empirical formula of compound: NO2Molar mass of compound = 92 g/molmolecular formula = ?Note:…

Q: 68.5 grams of a certain compound contains 5.25 x 1023 molecules.  What is the molar mass of the…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Mass of one mole of molecules of a substance is called its…

Q: Vitamin C (ascorbic acid) contains 40.92 % C, 4.58 % H, and 54.50 % O, by mass. The experimentally…

A: Given :-  Percent by mass of C = 40.92%  Percent by mass of H = 4.58 %  Percent by mass of O = 54.50…

Q: A combustion analysis of a 0.4647-g sample of a compound known to contain only carbon, hydrogen, and…

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Q: Given the atomic masses: x=1 grams Z=16 grams A=32 grams What is the molar mass (in grams ) of…

A: Given: The atomic masses for x, Z and A are included in the table. Element Atomic mass of 1 mole…

Q: Cortisone consists of molecules, each of which contains 21 atoms of carbon (plus other atoms). The…

A: The given data: The number of carbon atoms present in cortisone = 21 The mass % of the carbon in…

Q: The empirical formula for styrene is CH(l), and its molar mass is 104 g/mol. What is its molecular…

A: Given is,  Empirical formula of styrene = CH Molar mass =104 g/mol

Q: What is the empirical formula for a compound when nitrogen is 1.121 g, hydrogen 0.161 g, carbon is…

A: Empirical formula :-  The chemical formula which shows only the relative number (simplest ratio) of…

Q: Zinc phosphate is used as a dental cement. A 50.00-mg sample is broken down into its constituent…

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Q: Calculate the mass in grams of 3.07×10243.07×1024 molecules of propane. The chemical formula for…

A: Given that : The number of molecules of propane = 3.07×1024 The chemical formula for propane is…

Q: A grain of sand weighs 7.7 × 10−4 g. How many formula units of silicon dioxide, SiO2, are in one…

A: The mass of one formula unit of SiO2 = 60.08 g/mol

Q: What is the molecular mass of a compound whose empirical formula is CH3 and there are 5 empirical…

A: The empirical formula of the compound is . There are 5 empirical formulas in the compound. Use this…

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A: Given: Mass of sample = 1.000 g Mass of CO2 formed = 2.579 g Mass of H₂O formed = 0.6536 g Molar…

Q: Catnip's mass composition is 72.3% C, 8.4% H, and 19.3% O). Its molar mass is 166.2 g/mol. Deduce…

A: Empirical Formula :- It is the simplest ratio of number if atoms present in  a molecule.  Molecular…

Q: In a chemical reaction, sulfur goes through a combustion reaction and produces sulfur trioxide as a…

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Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

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Q: . He can tell from elemental analysis that the polymer is made up of only three elements: carbon,…

A: To solve this we have to consider the mass of polymer = 100.0g  Then  Mass of C = 56.45 g  Mass of H…

Q: What is the formula for the compound ?

A: The percent composition of an organic compound provides information about the percent/gram of each…

Q: A binary compound of boron and hydrogen has the following mass composition: 78.14% boron, 21.86%…

A: Determine how many grams of each element are present in  of compound. Given compound has  boron (by…

Q: Lindane is one of the chlorinated pesticides the use of which is now restricted in the United…

A: The percentage composition of various elements are: 24.78% => carbon 2.08% => hydrogen 73.14%…

Q: An oxide of tungsten (symbol W) is a bright yellow solid. If 5.34 g of the compound contains 4.23g…

A: To calculate the mole of tungsten and oxygen - Total mass of sample = 5.23 g Molar mass of…

Q: Calculate the molar mass of lead(II) nitrate, Pb(NO3)2(s)

A: The molar mass is the sum of masses of all the atoms present in compound.

Q: Monosodium glutamate (MSG), a food flavor enhancer, has been blamed for "Chinese restaurant…

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Q: What mass (in g) of Cl atoms are there in a sample that consists of 7.8e+19 formula units of…

A: Use formulas Mole=mass÷molar mass Total molecule=mole×6×1022

Q: Mass =

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Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: Empirical formula: Formula containing atoms in smallest possible integer ratio Molecular formula:…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: Combustion of 31.98 g of a compound containing only carbon, hydrogen, and oxygen produces 62.47 g…

A: Given, Mass of Compound containing only carbon, hydrogen, and oxygen = 31.98 g Amount of  CO2…

Q: A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields…

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

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.