1) How many moles are there in 24.0 grams of FeF3? 55.85 +57.00 112085 2 1 X 55,85 3 x 19,00 - 2x2299 24.0 grams F₂ F31 mole 112.850 2) How many moles are there in 458 grams of Na2SO4? 45,98 32.07 + 64.00 142005 3) How many grams are there in 2.30 x 1024 atoms of silver? 1X 107.87 107.87 1 X 32.07 4 x 16.00 0.212671688 0.213 mole 5 grams FeFз 458 grams Naa So 1 mole 1142.05 grams = 302/4216875 3.22 mole Na₂ 2 1504

Q: Determine the number of oxygen atoms present in25.0 g of carbon dioxide.

A: From given data  Mass of carbon dioxide (CO2) = 25 g  Also,  Molar mass of carbon dioxide = 44…

Q: How many molecules are in 1 mol of water?

A: Given :- number of moles of water = 1 mol  To calculate :- number of molecules of water

Q: For each of the following compound, determine the moles of compound present for 595.5 grams of the…

A: Interpretation: The moles of the given compound are to be determined. Given:  Formula of feldspar =…

Q: How many atoms are in 1.6 mol of carbon?

A: Moles of C = 1.6  Avogadro constant = 6.023 × 1023 mol-1

Q: How many atoms are in 7.4 mol of carbon?

A: To determine the number of atoms of C, multiply moles C by Avogadro's number.

Q: Silicon Si exists in Earth's crust as SiO2 Calculate the percent composition by mass of O and Si in…

A: Earth's crust is the outermost layer of earth. Si exist in earth's crust in the form of SiO2 .…

Q: 80 grams of sodium hydroxide contains how many molecules?

A:

Q: How many atoms are in 1.7 mol of carbon?

A: Given : Number of moles of Carbon=1.7 mol Number of atoms =?

Q: The percent copper in an unknown copper compound is 22.00 %. What is the formula weight of the…

A: One mole of a substance is equal to as many entities (atoms , molecules , ions ) as there are number…

Q: What are all the mole formulas such as, mole-mole, mole to liters, moles to grams, mass to mass,…

A: The formula for  mole-mole calculation has to give, A mole fraction indicates the number of chemical…

Q: The formula for dinitrogen tetrafluoride is . How many molecules are in 8.83 grams of dinitrogen…

A:

Q: For the molecular compound phosphorus triiodide, what would you multiply "grams of PI3" by to get…

A: Molar mass of PI3 = 411.67 g/mol

Q: Number of carbon atoms are in this molecule

A: The given compound is

Q: How many moles are equal to 12.8 grams ofCaO2

A: Moles can be calculated as follows

Q: A mystery compound has a molar mass of 28.1 g/mol. How many moles is 98.4 g? Do not put any units in…

A:

Q: Use the References to access important values if needed for this question. How many MOLECULES of…

A:

Q: How many molecules are in 39.4 moles of NH₃?

A: The answer to the following question is given as:

Q: A molecule has an empirical formula of NO. If the molar mass of the molecular formula is 117g/mol,…

A: We have to calculate the molecular formula.

Q: how many chlorine atoms are in 27 molecules of chloroform, CHCl3.

A: The molecular formula of the compound given is CHCl3.

Q: How many chlorine atoms are in 25 molecules of phosphorus pentachloride, PCI?

A: Given that Number of molecules of PCl5 = 25 Number of chlorine atoms in one molecule of PCl5 = 5

Q: Suppose that a compound containing copper and chlorine contains 0.01139 moles of copper and 0.03813…

A: According to the question:  moles of copper in compound = 0.01139 moles moles of chlorine in…

Q: How many moles of tin atoms are in a pure tin cup with a mass of 31.7 g ? Express your answer in…

A: Molar mass of tin=118.71g/mol Given mass of tin=31.7g No. Of moles= given mass/molar mass…

Q: A compound containing copper and chlorine contains 0.01026 moles of copper and 0.01721 moles of…

A:

Q: Six moles of hydrogen sulfide, H2S, would consist of how many molecule

A: Interpretation -  To determine number of molecule of Six moles of hydrogen sulfide H2S -…

Q: Calculate the number of g of O,

A: Given :- moles of C3H8 = 3.77 mol  To calculate :- mass of O2 (in g)

Q: The percent copper in an unknown copper compound is 27.40 %. What is the formula weight of the…

A: Given: % of Cu in compound = 27.40 % Mass of Copper (1 mole) = 63.546 amu

Q: The molar mass of acetic acid is 60.1 g/mol. How many grams are in 3.5 moles of acetic acid? Do not…

A: Mass of any substance in a given mole of substance can be determined as below : Mass of substance =…

Q: 3N22SO4 # of molecules: # of elements:

A: The name of Given molecule is sodium sulphate. So the molecular formula is Na2SO4 . Therefore number…

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.