. Calculate the number of moles and number of atoms/molecules from the following: (               use correct number of significant figures for moles and atoms/molecules)                               Avogadro's number is 6.022 x 1023  atoms/molecules per mole     a. 8.0g of O2    moles _________________    atoms/molecules  _____________________     b. 16.0g of CH4   moles _________________ atoms/molecules

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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.