What is the difference between molar mass and empirical formula mass of a compound? When are these masses the same and when they are different? How is the molar mass related to the empirical formula mass?

Q: A compound is 19.3% sodium, 26.9% sulfur, and 53.8% oxygen. Its formula mass is 238.00 g. What is…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: What are the major sources of error in determination of the molar mass?

A: Major sources of errors in determination  of molar mass is as follows: 1) Errors in measurements due…

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: An unknown compound has a molar mass of 118.10 g/mol. Given the following mass percent composition:…

A: Answer: Empirical formula of the compound is the formula that represents all the atoms in the…

Q: Why is it important to be able to calculate an empirical formula from experimental data? A. A…

A: Empirical formula of a compound represents the smallest whole number relative ratio of elements in…

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: 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: What is the molar mass of the compound containing two elements if 0.38 mol of the compound weighs…

A: Given is, Moles= 0.38 mol Mass= 21.15 g

Q: What number of  atoms and what amount (moles) of  atoms are in 800.0 g of zinc?

A: Given : mass of Zinc = 800 g

Q: How can the Percentage Composition be obtained from chemical formulas?

A: Percentage composition is given by, % composition = mass of the elementTotal mass of the…

Q: Which of the following could only be an empirical formula? N2H4 N2O4 .N2H6. N2O5

A: Empirical formula of a compound is defined as the formula of a chemical compound in which atoms are…

Q: What is the difference between an empirical formula and a molecular formula? Can they ever be the…

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

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

A: There are three types of chemical formulas:-  Empirical formula is the simplest whole number of…

Q: A compound of molar mass 229 g/mol contains only carbon, hydrogen, iodine, and sulfur. The analysis…

A: The ratio of the mass of carbon to hydrogen = 6:1 The ratio of moles of carbon and hydrogen =

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: What is the difference between the molar mass and empirical formula mass of a compound? When are…

A: For the given molecule, the total sum of the atomic masses of atoms that are present in the…

Q: If a compound is composed of 6.2% Hydrogen, 39.5% Oxygen, 37.0% Carbon and 17.3% Nitrogen a.…

A:

Q: The true value of a compound’s molar mass is 176.082 g/mol. You do an experiment and determine the…

A: Given that, The true value of a compound’s molar mass is 176.082 g/mol and the calculated molar mass…

Q: A binary compound of the elements X and Y is 1/3X by mass.  The molar mass of element X is ¾ the…

A: Empirical Formula  It is the simplest possible ratio of atoms present in a compound. To get the…

Q: Calculate the molar mass of a compound if 0.400 mole of it has a mass of 308.0 g.

A: Given :- no.of moles of compound = 0.400 mol  Mass of compound = 308.0 g  To calculate :-  Molar…

Q: How many molecules of a compound are in 25.0 g if the molar mass of the compound is 182.9 g/mol?

A: Interpretation: The number of molecules of a compound are in 25.0 g with the molar mass of the…

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

A:

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: provide an example of how to calculate empirical formula and then how to find molecular formula from…

A: In the determination of molecular formula, first step is the determination of its empirical formula.

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: What is the molar mass of a compound that has 7 atoms of an element with molar mass 20.63 and 18…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of 1 mole of molecules of a substance is called…

Q: How to calculate the theoretical mass percentage of an element in a compound

A: The percentage composition of a compound is the percentage by mass of each element in the compound.

Q: Complete the table below for calculating the molar mass of the ionic compound chromium(II) fluoride…

A: Given Chromium(II)fluoride is given, the mass of each ion in 1 mole of Chromium(II)fluoride is to be…

Q: What information do we need to determine the molecular formula of a compound from the empirical…

A:

Q: Formula Molar mass of ion   Number of ions   Mass of ion in one mole of barium iodide Cation Ba2+…

A: We have to just collect data and then add them up

Q: What is the molecular formula of a compound given the molecular weight (molar mass) of the compound…

A: Empirical formula is the representation of atoms in whole number.

Q: A compound containing only hydrogen and carbon is known to be 92.26% C by mass.  If the molecular…

A:

Q: How do I calculate atomic mass, molecular mass in amu, formula mass in amu, and molar mass in g.?

A: How to find molar mass from AMU? The molar mass of any element can be determined by finding the…

Q: what are the molecular weights (molar mass) of the following compounds

A:

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

A:

Q: A compound is found to contain 83.60% C and 16.40% H. What is its empirical formula ?

A: Given: Compound is found to contain 83.60% C and 16.40% H. Let us consider the mass of compound be…

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: Elemental analysis of an unknown compound shows it to contain 1.314574 g of hydrogen, 13.466853 g of…

A: Molar Mass of Phosphorus = 30.97 g/mol Molar mass of Hydrogen 1.00 g/mol Molar mass of Oxygen = 32…

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

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

Q: What are the molecular weights (molar mass) of the following compounds

A: We need to determine the molar mass of MgCl2 and (NH4)2SO4.

Q: A compound contains 12.8% C, 2.1% H, and 83.1% Br (by mass). Calculate the empirical formula and the…

A:

Q: Calculate the number of grams of xenon in 4.294g of the compound xenon tetrafouride. Mass of xenon=…

A: We have to calculate the mass of Xe.

Q: A compound is analyzed and determined to have the following percent-by-mass composition: 60.95%…

A:

Q: Determine the empirical formula for a compound that contains 53.3% C, 11.2% H, and 35.5% S by mass.…

A: Given : Mass percent of C = 53.3 % Mass percent of H = 11.2 % Mass percent of S = 35.5 % Assuming…

Q: A compound has the composition given in the table below. Molar masses of the elements are also…

A: Empirical formula is the simplest positive integer ratio of atoms that are present in a chemical…

Q: A compound is 70.6% Hg, 12.5% Cl,and 16.9% O. If it has an experimental molar mass of 568 g, what…

A: Empirical Formula           It represents the simplest positive integer ratio of atoms present in…

Q: What is the empirical formula of X

A: The empirical formula of the compound can be calculated with the help of percentage composition of…