The number of molecules in 76g of fluorine

Q: If a sample of H2O contains 9.02 × 1023 molecules, how many grams of H2O is this?   A. 3.00 g H2O…

A: Third option. C. 27.0 g of H2O

Q: How many molecules are in 20.8 moles of NO₂?

A:

Q: how many molecules are in 97.21 grams of sodium chloride NaCl?

A: I mol contains 6.023 × 1023 molecules. Number of moles = given mass/ molecular mass

Q: How many atoms of oxygen are present in 12.5g of nitrogen dioxide?

A: Given: Mass of nitrogen dioxide (NO2) is 12.5 g. To find: Number of oxygen atoms.

Q: Determine the number of molecules present in 0.220 g of NH3

A: In this question, we will determine the number of molecules of NH3 How we can determine the number…

Q: Determine the number of atoms in 3.50 g of gold.

A: Given data- Number of atoms in 3.5 Gold .Molar mass of Au=196g/mol

Q: how many molecules are in 2.9 mol of c7h5n3o6

A: Given :- number of moles of C7H5N3O6 = 2.9 mol  To calculate :- number of molecules  1 mol = 6.022 ×…

Q: A sample of NH3 has a mass of 84.06 grams.   Calculate the moles of NH3 in the sample.…

A: Given : Mass of NH3 = 84.06 g

Q: The percent composition of salicylic acid is 60.78% carbon, 4.38% hydrogen and the rest is oxygen.…

A: Given: percent composition of  carbon = 60.78% percent composition of hydrogen = 4.38% Assume that…

Q: Determine the number of molecules present in 0.560 g of CH4.

A: Given data contains, Mass of methane=0.560 g. Molar mass of methane=16.04 g/mol

Q: a. How many molecules of carbon dioxide are present in 4.99 moles of this compound? molecules 22 b.…

A: 1 mol = 6.022 x 1023 moleculesThus,1 molecule =  mol

Q: Determine the number of molecules in 18.6 grams of NH₃

A:

Q: Caculate the number of moles in 0.220 g of calcium carbonate.

A: Number of moles of a particular substance or compound can be calculated by dividing the given mass…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

Q: The number of moles of potassium that contains 8.47×1025 atoms.

A: Given,Number of potassium atoms = 8.47 × 1025

Q: The chemical formula for garnet is MgAl-(SiO.). What is the mass in grams of garnet that are in…

A:

Q: how many molecules are in 20.3 grams of carbon tetrachloride?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many molecules are in 40.8 moles of SO₂?

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: 1.671g anhydrous copper (II) sulfate to moles

A:

Q: Calculate the number of moles and number of molecules in 25.0 g of nitrogen gas

A: Given Mass of nitrogen gas ( N2 ) = 25.0 g

Q: How many molecules of methane (CH4) are in 15.0 g of methane?

A: Number of molecules = moles X Avogadro's number  where Avogadro's number = 6.022 X 1023  Since moles…

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: 4. A sample of acetic acid has 4.22x1024 molecules. How many grams of hydrogen are present?

A:

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.