Putrescine, a substance produced by decaying animals, has the empirical formula C2H6N. Several determinations of molecular weight give values in the range of 87 to 90 amu. Find the molecular formula of putrescine.

Q: The formula of ascórbico acid vitamin c is C6H8O6 molar mass 176.14 g/mol. How many moles of…

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Q: The mass of an organic compound was found to be 58.053 86 by mass spectrometry. Is the sample C₂HN₂,…

A: The solution is given below -

Q: A patient is having an allergic reaction and takes a 50.0 mg tablet of the over‑the‑counter…

A: Given, Mass of diphenhydramine hydrochloride = 50.0mg. Moles of diphenhydramine hydrochloride can be…

Q: How many atoms of H does the notation 5 Fe(HOOCCH2COO)3 indicate? Express your answer as an integer.

A: Answer:The letter y used in subscript represents that in one molecule of ABy B is present y times,…

Q: A compound was found to contain 115.49g of Ca, 92.16 g of O, and 5.82 g of H. What is the total mass…

A: mass of Ca = 115.49g mass of O = 92.16 g mass of H =  5.82 g  Molar mass of Ca = 40.078 g/molMolar…

Q: Which of the following setups would you use to obtain the number of O atoms in 86.8g of Cr(NO3)3?

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

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

Q: A molecular compound is found to consist of 26.0% nitrogen and 74.0% oxygen. If the molecule…

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Q: Given the following reaction,  I2O5(g) + CO(g) --> CO2 (g) + I2(g)  a) If 50 g of iodine(V) oxide…

A: An equation representing the reaction between I2O5 and CO that yields I2 and CO2, for which three…

Q: Methyl tertiary butyl ether, or MTBE, is currently used as an octane booster in gasoline. It has…

A: Answer:- This question is answered by using the simple concept of calculation pecentage composition…

Q: How many moles of water vapor are produced for every mole of methane consumed in the combustion…

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Q: Calculate the moles of glucose in 1.0253 g of glucose, C6H12O6. Then calculate the moles of each…

A: Given :-  Mass of glucose = 1.0253 g  To calculate :-  Number of moles of glucose and also determine…

Q: How many atoms are present in (6.78x10^1) g of an element with the following molar mass.…

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Q: Mass analysis of a common drying agent of organic molecules reveals that it has the empirical…

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Q: If you had 3.6 moles of Ca(OH)2, how many grams would you expect to have? And How many moles are in…

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Q: How many hydrogen atoms are in 5.0 g of citric acid (CóHg87)? O 1.6 x 10²² Hydrogen atoms O 4.6 ×…

A: Mass of Citric Acid = 5.0 gMolar mass of Citric Acid = 192.124 g/moleMoles of Citric Acid = Mass of…

Q: The molecular weight of an unknown hydrocarbon is 208.29. The compound is found to be composed of…

A: We have to find chemical molecular formula. Given, Percentage composition of C,H and O are…

Q: If an air conditioning unit is charged with 4.9 x 1023 molecules of R-113 (C5Cl3F6), what mass of…

A: Given : Number of molecules of C5Cl3F6 = 4.9 X 1023

Q: How many atoms of carbon and how many grams of carbon are there in 5 molmol of each of the following…

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Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…

A: Given, mass of C₅₅H₇₂MgN₄O₅. = 1.501 g Molar mass of C₅₅H₇₂MgN₄O₅. = 893.49 g/mol  Number of moles =…

Q: Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects.…

A: Given molar mass of caffeine = 194.2 g/mol percentages C = 49.5℅ N = 28.9℅ H = 5.19℅ O = 16.5 ℅

Q: aspartame has molecular formula of C14H18N2Oc5(s). what is the molar mass? what is the amount of…

A: The molar mass of any molecule is the total sum of the molar masses of all the atoms present in that…

Q: 3. The following data was obtained from the experiment outlined in the procedure: Mass of flask and…

A: Empirical formula defines the ratio of every atom in any compound while; the molecular formula…

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: 74. A throat lozenge contains 5.0 mg of menthol, which has the formula C10H20O. How many moles of…

A: Given : 74. 1. How many moles of menthol are in 5.0 mg of menthol? 2.What is the mass in grams of…

Q: a) Elemental analysis of an unknown sample shows its mass composition to be 49.45% carbon (C),…

A: a. What is the molecular formula of the unknown compound?Carbon (C)4.12 moles (divide 49.45g to…

Q: Balance the equation below, which uses imaginary elements (they still follow the usual convention –…

A: We have to balance the equation below, which uses imaginary elements (they still follow the usual…

Q: For the chemical reaction, Fe2O3 + 3 SO3 à  Fe2(SO4)3, calculate the number of moles of SO3 you will…

A: Given :-  Fe2O3 + 3 SO3 →  Fe2(SO4)3  number of moles of Fe2O3 = 6.45 mol  To calculate :-  number…

Q: What is the mass, in grams, of 6.5 x 10-3 moles of ammonium phosphate? 1.35 g 0.97 g 0.85 g 0.73 g

A: Concept:  Moles and molar mass can be used to predict the mass of the sample. Moles is unit to have…

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.