What is the correct molar mass of calcium chloride?

Q: 58. The number of hydrogen atoms present in 25.6 g of sucrose (C12H2201), which has a molar mass of…

A: Detail mathematical calculation for determining number of atoms of hydrogen is given below

Q: Calculate the mass, in grams, of 862 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A: One mole if any substance have 6.022*10^23 atom/ particles/ion etc thus here knowing the no of moles…

Q: A particular ore of lead, galena, is 10.0% lead sulfide, PbS, and 90.0% impurities by weight. What…

A: we  need to calculate mass of Pb in the ore

Q: The density of Bi at 25 °C is 9.808 g>cm3. How many Bi atoms are present in a cube of the element…

A:

Q: A sample of ammonium phosphite, (NH4)3PO3, contains 0.162 mol of nitrogen atoms. The number of moles…

A: Given , ammonium phosphite  (NH4)3PO3

Q: A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO,…

A: Given,

Q: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

A:

Q: How many H atoms are present in 7.52 g of propane, C3H8?

A: The given data contains, mass of propane = 7.52 g.

Q: A typical engagement ring might have a diamond made of pure carbon, weighing 0.12 grams. How many…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: If a sample of Fe2S3 contains 1.25x10^15 iron atoms what is the mass in grams ?

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Q: Q8 -Boric acid, H3BO3, is a mild antiseptic and is often used as an eyewash. A sample contains…

A:

Q: An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, C9H8O4. How many…

A: Given:Mass of aspirin = 325 mg = 0.325 g.

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: How many grams of sugar C12H22011 that consists of 1.25 x 1024 atoms of hydrogens? Molar mass of…

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Q: b. CFBRO, molar mass is 509.6 g/mol C. C2OH4, molar mass is 88.1 g/mol

A: Molecular formula = (empirical formula)n  n = molar mass/empirical formula mass

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: the atomic weight of magnesium is 24.3 g/mol, calculate how many magnesium atoms does 5g represent?

A: Mass of Mg = 5 g Atomic weight of Mg = 24.3 g/mol

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

A:

Q: How many bromine atoms are present in 32.5 g of CH2Br2?

A: Since there are multiple questions, we are authorized to answer only the first one. If you want the…

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: Flubberium (Symbol Fb) has a atomic mass of 50 grams, Vibranium (Symbol Vi) has an atomic mass of 25…

A:

Q: Calculate the mass, in grams, of 175.0 atoms of cadmium

A: Given :- number of atoms of Cd = 175.0 atoms                mass of 1 mol Cd = 112.41 g  To…

Q: Oxygen makes up 46.7% by mass of the earth's crust. How many grams of oxygen are present if a sample…

A: Given that, 46.7% by mass of the crust of earth is made up of Oxygen. It implies that every 100 g of…

Q: A chemist has one mole of an unknown molecule. The mass of this sample is 184.1 grams. After doing…

A: Given: Mass of 1 mole of molecule = 184.1 g. And the molecule has the formula XBr2.

Q: What is the mass of 3.89 mol of diboron tetrabromide?

A:

Q: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: How many NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What…

A: In one moles of NH3 is equal to Avagadro number of Molecules of NH3  That means,  1mol of NH3 =…

Q: 4. Does 1 g of hydrogen molecules contain as many H atoms as 1 atoms? of hydrogen

A: A mole is amount of substance which contain same number of units as the number of atoms in 12 gm…

Q: What is the molar mass of calcnum chloride hexahydrate! a 75.53 g'mol, b.111.0 gmol c 1170 gmol d.…

A: The answer to the following Question is:

Q: How many grams of gold (Au; atomic mass = 197.0 g/mol) contains 2.5 x 1020 gold atoms?…

A: Number of gold atoms = 2.5 ×1020  Atomic mass of gold = 197 g/mol

Q: The formula of glucose is C6 H12 O6. a. The number of molecules in 166 grams of glucose would be…

A:

Q: 3. Consider the equ: Moles: C8H14 Masses: C8H14

A: First convert mass into mole by dividing molarity mass of H2O  Then use mole-mole relationship…

Q: Hemoglobin, a protein in red blood cells, carries O₂ from thelungs to the body’s cells. Iron (as…

A: It is given haemoglobin that haemoglobin has a molar mass of 6.8×104g/mol and the mass percentage of…

Q: The chief component of eucalyptus oil is X, which contains 77.87% C, 11.76% H and the reminder O.…

A: Assume you begin with 100 grams of unknown compound X.

Q: How many molecules of C,H,, are present in 385.42g of C,H,? 10 If you have 7.24 x 10 molecules of…

A:

Q: 4. What is the mass percent composition? Why is it useful?

A: Mass percent of each type of element in a compound is called the mass percent composition of the…

Q: How many hydrogen atoms are in 1.0 G sample of acetic acid, CH3COOH? The molar mass of acetic acid…

A: Mass= 1gm Molar mass=60g/mol

Q: What is the molar mass of aluminum chlorate, Al(Cl03)3? A)456.78 g/mol B)325.33 g/mol C)331.29 g/mol…

A: Molar mass of molecules  = sum of atomic masses of all the atoms present  Since in Al(ClO3)3 we have…

Q: How many grams of BrBr are in 305 g CaBr2? mass:

A:

Q: Graphite, one form of carbon, is a powdery black solid used to make pencil lead.  A speck of…

A: Graphite powder is equivalent to carbon.

Q: A student is running an experiment in which 71.1 grams of MnSO, is needed, but the only jar of…

A: Given: The mass of MnSO4 required for performing an experiment is 71.1 g.

Q: The FM for a compound is 15.26. What is the mass of 1 mol of that compound

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: кНCgH404 (аg) + NaOH (aq) — Н20 () + KNaCgHд0д4 (аq) Molar mass of кНСgH404 %3D 204.22 g/mol

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: What is the mass percent of chlorine in NH4Cl?

A: First, find the total mass of NH4Cl.NH4Cl = 54g/mol

Q: Calculate the mass, in grams, of 822 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A:

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: 4. Explain why an empirical formula can represent many different molecules. 5. Explain why 1 mol of…

A: Moles are the bigger unit which is then converted to molecules and then to atoms

Q: After heating, the anhydrous salt can be left on the bench several minutes before weighing * True…

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions…

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.