6. Which of the following samples contains the greatest number of molecules? A. 1 g phosphorus, P4 B. 1 g chlorine, Cl2 C. 1 g nitrogen, N2 D. 1 g sulfur, S8

Q: Anthracite is a type of coal that is composed of carbon with small amounts of hydrogen, oxygen,…

A:

Q: Determine the number of moles of phosphorus in 7.722 g of Zn3(PO4)2.  [Mr (Zn3(PO4)2) = 386.1 g…

A:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: (a) Given data contains, Mass of Ag=1.651 g. Mass of O=0.1224 g.

Q: A sample is found to contain 0.650 mole of a chemical substance. a. How many atoms are present if…

A:

Q: A student heated calcium carbonate (CaCO3) producing calcium oxide (CaO) and carbon dioxide (CO2).…

A: The Law of Conservation of Mass is that mass is neither created nor destroyed in chemical reactions.…

Q: A 2.41 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.30 x 102…

A: Given: Number of molecules of N2O =3.30×1022 molecules And mass of N2O sample =2.41 g

Q: Oil of vitriol is a substance that humankind has known of for thousands of years! Today the…

A: Oil of vitriol is known as H2SO4 scientifically. The atomic mass of the atoms of the constituent…

Q: In order to calculate the percentage composition by mass of a compound, it is necessary to know:…

A:

Q: A 3.69 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.05 x 1022…

A: a.The total number of nitrogen atoms in 3.69g sample of nitrous oxide is calculated as,

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.