Pheromones are chemical substances secreted by members of a species to stimulate a response in other individuals of the same species.  For example, certain pheromones are secreted by females of a species to attract males for mating.  The percent composition of eicosene (280 g/mol), a compound similar to the Japanese beetle mating pheromone, is 85.63% C and 14.37% H.  Determine its molecular formula.

Q: A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76%…

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Q: empirical formula

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Q: A compound contains only carbon, hydrogen, nitrogen, and sulphur. A combustion analyzer collects…

A: Given, A compound contains only carbon hydrogen, nitrogen and sulpur. The combustion analyzer…

Q: anesthetic used to treat a range of conditions such as sunburn, bites, stings and a range of rashes.…

A: Molecular form of Benzocaine is C9H11NO2  Avogadro’s number 1 mole = 6.022×1023 particles

Q: many molecules were used

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Q: Caffeine, a molecule found in coffee, tea, and certain soft drinks, contains C, H, O, and N.…

A: Given, Mass of caffeine = 10.0 g Mass of CO2 = 18.13 g Mass of H2O = 4.639 g Mass of N2 = 2.885 g…

Q: Determine the empirical formula of a compound having the following elemental analysis: 52.2% C;…

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

Q: a) Determine molecules of C5H5N in 16.00 g of C5H5N (molar mass = 79.11g/mol). b) Explain how the…

A: a) Given : Mass of C5H5N = 16.00 g And molar mass of C5H5N = 79.11 g/mol.

Q: Combustion analysis of an unknown compound containing only carbon and hydrogen produced 1.1385g of…

A: Recall the data, Mass of CO2=1.1385 g Mass of H2O=0.5805 g empirical formula of the compound=?…

Q: 2. Calculate the number of molecules of water in a 500.0-mL glass of water. (Note: assume density of…

A: • As per bartleby guidelines, I need to solve only first question in case of multiple questions…

Q: When 2.115 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 6.637 grams…

A: First of all we calculate the mass of Carbon in Carbon dioxide and mass of Hydrogen in water. Then…

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: A compound contains carbon, hydrogen, and sulphur. A combustion analyzer collects 45.0 g of CO2,…

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Q: 3.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that,Mass of compound, which is made up of carbon, hydrogen and oxygen = Molecular mass of…

Q: Florasulam is an herbicide with the chemical formula C12H8F3N5O3S. Answer the questions below…

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Q: Determine the molecular formula of the compound with an empirical formula of CH and a molar mass of…

A: Given:- Determine the molecular formula of the compound with an empirical formula of CH and a molar…

Q: 37. Medical implants and high-quality jewelry items for body piercings are frequently made of a…

A: 37. G23Ti or surgical-grade titanium has 64.39 % titanium, 24.19 % aluminum and 11.42 % vanadium…

Q: A 3.270 gram sample of an organic compound containing C,H and O is analyzed by combustion analysis…

A: According to the question, The mass of the CO2 is given by = 4.793 gramsThe mass of the H2O is given…

Q: Consider a sample of calcium carbonate, CaCO3 (100.09 g/mol), in the form of a cube measuring 2.88.…

A: The length of the cube of calcium carbonate, CaCO3 =2.88 cm The density of the calcium carbonate,…

Q: molecular formula

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Q: A 0.613 g sample of a covalent compound contains 3.13 × 1021 molecules. What is the molar mass (in…

A: We have 0.613 g sample of a covalent compound contains 3.13 × 1021 molecules . We have to calculate…

Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

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Q: The amino acid glycine has the chemical formula C2H5NO2. What is the percent composition of nitrogen…

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Q: a compound contains only hydrogen, carbon, and oxygen. combustion of 10.68mg of the compound…

A: The combustion reaction of given compound and its masses are shown below,

Q: When 5.555 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 17.43 grams…

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Q: A given sample of Xenon flouride compound contains molecules of the same type XeFn where n is some…

A: Chemical formula which shows number of chemical elements and total element’s number available in…

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula :- The formula which gives the simplest whole number ratio of atoms of various…

Q: 5.) Ethylene glycol is a coolant widely used in automobiles. If its molecular formula is C2H6O2, how…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

Q: A salt water mixture was prepared by dissolving 6.98 g of NaCl in 96.1 g of water. What is the…

A: The mass percentage of a component in a given solution is defined as the mass of the component per…

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

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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.