Copper wire is sold in spools according to the gauge number of the wire. The gauge number refers to the diameter of the wire. Determine the number of meters that are present in a 10 lb spool of 12-gauge copper wire. (Copper has a density of 8.96 g/cm3. A 12-gauge wire has a diameter of 0.0808 in.) How many copper atoms are present in this length of wire?

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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.