A compound containing only hydrogen and carbon is known to be 92.26% C by mass.  If the molecular formula has twice the molar mass as the empirical formula, how many moles of the molecule are contained in 36.8 g?

Q: A sample of silicon having a mass of 3.43 g combined with oxygen to form a compound with a mass of…

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Q: A compound that contains only carbon, hydrogen, and oxygen is 68.84% C and 4.95% H by mass. What is…

A: GivenThe percentage composition of carbon (C) is 68.84%.The percentage composition of hydrogen (H)…

Q: Determine the empirical and molecular formulas of a compound that contains 56.36% O and 43.64% P and…

A: It is given that:Amount of oxygen (O) in compound = 56.36 %Amount of Phosphorus (P) in compound =…

Q: What is the difference between an empirical formula and a molecular formula?

A: The empirical and the molecular formulas are both a type of chemical formulas. An empirical formula…

Q: If a molecule with an empirical formula CHO has a molar mass of 88.12 g/mol, what is its molecular…

A: Given, Empirical formula = CHO  Molar mass = 88.12 g/mol     Required,                     Molecular…

Q: A compound containing carbon and hydrogen contains 4.75 g of carbon and 0.80 g of hydrogen. The…

A: When two or more atoms combine with each other, they will form molecule and those molecules has…

Q: A compound was found to have the following composition by mass: 28.03% Mg, 21.60% Si, 1.16% H, and…

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Q: Determine the empirical and molecular formula for a compound that gives the following percentages…

A: Assuming we have 1 mole of compound Hence mass of compound = 1 X molar mass = 98.96 g Since the mass…

Q: What is the empirical formula and empirical formula mass for C7H14?

A: Given,      Molecular Formula: C7H14

Q: A compound is composed of 81.72% Carbon and 18.28 % Hydrogen, by mass. What is the empirical…

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Q: A compound is 53.31% C, 11.18% H, and 35.51% O by mass. What is its empirical formula?

A: Given,Mass percentage of C = 53.31 %Mass percentage of H = 11.18 %Mass percentage of O = 35.51 %This…

Q: A molecule is found to contain 47.35% by mass C, 10.60% by mass H, and 42.05% by mass O. What is the…

A: The solution to the empirical formula of the compound is attached below.

Q: The compound noradrenaline contains 56.80% C, 6.55% Н, 28.37% О, and 8.28% N by mass. What is the…

A: To solve thia problem we have consider that mass of given compound is 100 g  Then according to the…

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: Nickel (Ni) is a metal that is added to steel to improve its resistance to corrosion. Calculate both…

A: Given : Number of atoms of Nickel i.e Ni = 6.99 X 1020 atoms.

Q: A compound is composed of element X and hydrogen. Analysis shows the compound to be 80% X by mass,…

A: Given data :- A compound is composed of element X and hydrogen. Analysis shows the compound to be…

Q: A sample of compound X is subjected to elemental analysis and the following percentages by weight…

A: Given   % C = 39.97 %  % H  =  6.73 %  % O  =  53.30  Empirical formula = ?

Q: Calculate the mass in grams of 4.46×1024 molecules of propylamine. The chemical formula for…

A: Avogadro constant = 6.022 × 10²³ /mol The moles of propylamine can be calculated asNo. of moles of…

Q: The empirical formula of a compound is CH. If the molar mass of this compound is about 78 g, what is…

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

A: Formula use is, no of moles = weight/ molar mass

Q: The empirical formula of codeine is C18H21NO3. If the molar mass of codeine is 299 g/mol, what is…

A: In this question empirical formula of codeine is given and we want to determine the Molecular…

Q: Determine the molecular formula of a compound that has a molar mass of 183.2 g/mol and an empirical…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: The mass fraction of an element present in a compound can be obtained by comparing the mass of the…

A: Mass fraction of an element is defined as the total mass of the element to the total mass (molar…

Q: 3. A compound is composed of 52.14% Carbon, 13.13% Hydrogen and 34.73 Oxygen by mass a. What is the…

A: When two or more atoms combine with each other, they will form a molecule and those molecules have a…

Q: The element X forms the chloride containing 75.0% Cl, by mass. What is element X?

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Q: A compound that contains only carbon, hydrogen, and oxygen is 58.80% C and 9.87% H by mass. What is…

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Q: What would the empirical formula be for a compound that contains only nitrogen and oxygen and is…

A: Find the solution below

Q: A molecule is found to contain 64.27% by mass C, 7.191% by mass H, and 28.54% by mass O. It’s molar…

A: The given organic compound is made up of C, H and O atoms.  Molar mass of the given compound is 168…

Q: A compound with the empirical formula CH2 has a molar mass of 84 g/mol. What is the molecular…

A: * Emperical Formula is the simplest integer ratio of atom present in a compound . It does not tell…

Q: What is the difference between molecular formula and empirical formula? Which formula is used to…

A: Emperical formula :   It is the simplest form of expressing the elemental composition of a…

Q: How many C atoms of mass 12.00 amu are in 12.00 g of carbon?

A: Conversion factor used:  1 amu = 1.660539×10-24 gm Mass of carbon (C) = 12.00 g Mass of 1 carbon (C)…

Q: A compound is found to contain 58.80 % xenon 7.166 oxygen, and 34.04% fluorine by mass.The molar…

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Q: A compound having an approximate molar mass of 150.0–155.0 g has the following percentage…

A: The question is based on the concept of elemental analysis. we have been given percentage of…

Q: 81. A compound having an approximate molar mass of 165–170 g has the following percentage…

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Q: A 100.00 g sample of the compound XCl3 is decomposed to produce 90.77 g of the element chlorine.…

A: The reaction taking place will be  2 XCl3 -----> X2 + 3 Cl2  Hence moles of Cl2 formed / moles of…

Q: 2.56 g of a compound containing only carbon hydrogen and oxygen is burned completely 3.84 g of CO2…

A: NOTE : On combustion, the products forming will be CO2 and H2O and not H2. Hence I'm assuming the…

Q: A compound containing carbon and hydrogen has a molar mass of 56.11g/mol and an empirical formula of…

A: Empirical Formula: Indicates the simple whole number ratio of different types of atoms present in…

Q: A pure sample of a compound that contains boron and hydrogen weighs 0.469 g. If the sample is found…

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Q: A compound having an approximate molar mass of 165-170g has the following percentage composition by…

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Q: An organic compound has a molar mass of 171.1 g/mol and contains 11.10 % hydrogen atoms by mass. How…

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Q: What does the word “empirical” in empirical formula mean? If we know the empirical formula of a…

A: In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of…

Q: The elements X and Y form a compound that is 40% X and 60% Y by mass. The atomic mass of X is twice…

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Q: A molecule is found to contain 50.0% by mass C, 5.61% by mass H, and 44.4% by mass O. What is the…

A: C = 50.0% H=5.61%  O= 44.4%

Q: A compound composed of Nitrogen, Carbon, and Hydrogen has the following composition by mass: 60.0 %…

A: Percentage of nitrogen in given compound is,                       Moles of Carbon present in 60g…

Q: A 69.5 g69.5 g sample of the compound X3O4X3O4 contains 19.2 g19.2 g of oxygen atoms. What is the…

A: First Calculate mas percent of oxygen in compound   Total mass of oxygen in sample is 64g  Then need…

Q: Calculate the mass percent of each element in the chemical formula C5H9O2N

A: The ratio of mass of element in 1 mol to the molar mass of compound multiply by 100 is known as…

Q: What is the empirical formula of a compound that contains 29% Na, 41% S, and 30% O by mass?

A: Emperical formula is the simplest formula of the molecule in which atoms are present in simple…

Q: Problem attached

A: The empirical formula of a chemical compound is the simplest positive integer ratio of atoms…

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.