a compound is 30.4% N, and 69.6% O (by mass). Calculate the empirical formula for this compound. use: 14.007 g/mol for N and 15.999 g/mol for O

Q: Ethylene glycol (MW=62.0 g/mol) is used as automobile antifreeze. Combustion analysis of a 23.46 mg…

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Q: A particular antioxidant is 56.5% C, 5.7% H, and 37.7% O by mass.  Determine the empirical formula…

A: Let consider the mass for compound = 100 gram Therefore 100 gram compound contains., mass of carbon…

Q: Write the chemical formula for 1 mol of compound X containing 2 mol Al and 3 mol O.   X= ?

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Q: A compound contains 36.68 %C, 2.309 %H, and 61.01 %Br (by mass). Determine the empirical formula of…

A: Element C H Br Mass % 36.68 2.309 61.01 moles 36.6812 2.3091 61.0180 simple ratio of moles 4 3…

Q: Molar Masses A = 12.98 D = 13.43– X = 22.40–2 E = 19.26 Z = 4.032 mole mole G = 16.42 mole mole A…

A: Answer:- This question is answered by using the simple concept of determination of empirical formula…

Q: A compound consisting of B, N, and H undergoes elemental analysis. The % composition by mass is…

A: Given,Percent of B in the compound = 40.28 %Percent of N in the compound = 52.20 %Percent of H in…

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Given: Weight of empty aluminum pan      = 0.4661 g Weight of CuCl2. x H2O sample       = 0.8390 g…

Q: a. Two compounds have the same composition: 92.25% C and 7.75% H. Obtain the empirical formula…

A: Empirical formula is the simplest formula of a compound where atoms of participating elements are…

Q: 1-Calculate the mass of compound required to prepare 100.00 mL of a 1.40x102 M CuCl2 ?.

A: Molarity is number of moles of solute present per liter of solution, notated as M and the unit is…

Q: Determine the empirical formula of a compound with mass composition of 67.56% Carbon, 9.94%…

A: Empirical formula is the simplest whole number ratio of the atoms present in the given molecular…

Q: Determine the empirical formula for a compound that is 52.2% C, 13.1% H, and 34.7% O by mass.…

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Q: A compound contains only C, H, and N. Combustion of 35.0 mg of the compound produces 51.3 mg CO2 and…

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Q: _____1. What is the % C in aspirin by mass in aspirin? _____2. What is the % O in aspirin by mass…

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Q: 19) How many sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05…

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Q: What is the empirical formula of compound contains 0.799 g c and 0.201 g h in 1.00 g sample?  What…

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Q: 16. A metal has the mass of 12.00 g and 5.850 x 1022 atoms. Calculate molar mass of the metal. O…

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Q: What number of molecules (or formula units) are present in 1.18 g of each of the following…

A: Avogadro's number is the number of atoms, molecules, ions, formula units or any particle found in…

Q: Determine the empirical formula for a compound that is 76.6%76.6% C, 6.4%6.4% H, and 17.0%17.0% O by…

A: Given that the mass percent of C, H and O is 76.6%, 6.4% and 17.0% respectively. Number of moles of…

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: 1-Calculate the mass of compound required to prepare 100.00 mL of a 1.40x102 M CuCl2 ?.

A: Molecular weight of CuCl2 = 134.45 g mol-1 Formula Used 1. No of moles = volume × concentration 2.…

Q: An unknown organic compound contains 41.4 % carbon, 3.47 % hydrogen, and 55.1 % oxygen by mass. A…

A: Given data,Percentage of C=41.4%Percentage of H=3.47%Percentage of O=55.1%Moles of compound…

Q: a. A piece of iron metal with a mass of 42.5g is burned in the presence of oxygen. The resulting…

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Q: Two compounds have the same composition: 85.62% C and 14.38% H.a Obtain the empirical formula…

A: welcome to bartleby  answer to both the questions have been given below

Q: 1. ) 70.90 g/mol 26.98 g/mol 133.3 g/mol 2 Clzig) + 3 Al(s) 2 AICI3(s) a. Calculate the theoretical…

A: number of moles = mass/molar mass  mass = moles × molar mass  percent yield = {actual…

Q: given moles of moles given molecules. Formula 0₂ HCIO3 Ag₂SO4 C12H22O11 Molar Mass 16.0 x 2 = 32.0…

A: Number of moles is calculated by dividing the given mass with molecular mass. Avogadro number is…

Q: An acid, HEI, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: Percent by weight or %(w/w) :-  The mass of solute present in 100 grams of solution is defined as…

Q: The empirical formula of a compound is CH. If the molar mass of the compound is 104.1g/mole, what is…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: What number of molecules (or formula units) are present in 4.70 g of each of the following…

A: We have to calculate number of molecules in 4.70g of each compounds.

Q: hat number of molecules (or formula units) are present in 1.69 g of each of the following compounds…

A: Find the number of moles of each and multiply each number of moles with avagadro number. Number of…

Q: What number of molecules (or formula units) are present in 2.25 g of each of the following…

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Q: Lamar measures out 1.697 g of NaCl to add to his pot of boiling water for his pasta. How many moles…

A: Given is mass of NaCl added = 1.697 g molar mass of NaCl = 58.44 g/mol We need to calculate the…

Q: 1.) 70.90 g/mol 26.98 g/mol 2 Cl2@) + 3 Al(s) > 2 AICI3(s) 133.3 g/mol a. Calculate the theoretical…

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Q: Give the empirical formula of the following compound if a sample contains 40.0% C, 6.7% H, and 53.3%…

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Q: Predict how many moles of CaO he should have ended up with, using the following steps. Given that…

A: Given, Amount of CaCO3 = 5.0 g Molar Mass of CaCO3 = 100 g/mol Formula Used:

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.