Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48 g/cm3. A fitting composed of common brass has a total volume of 115.5 cm3. I.) How many atoms of copper does the fitting contain?     II.) How many atoms of zinc does the fitting contain?

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Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

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Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

A: Here we have:Volume of common brass = 115.0 cm3Density of common brass = 8.48 g/cm3As we know:

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.