Question
Asked Feb 20, 2019
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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 115.0 cm3 . How many atoms of copper does the fitting contain?

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Expert Answer

Step 1

The mass of the given sample may be calculated as: 

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Step 2

Mass % of copper in the sample = (100-37)% = 63 %

Thus, mass of copper in the sample:

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Step 3

Number of moles of Cu ...

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