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Topic: How many atoms?  (Read 3109 times)

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Offline IImaybelleII

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How many atoms?
« on: September 26, 2007, 11:19:20 AM »
An object is coated with a layer of chromium, 0.015cm thick. The object has a surface area of 15.3 cm2. How many atoms of chromium are used in the coating? (the density of chromium = 7.19g/cm3)


Do i have to convert the volume to mass..then mols to atoms?? If so..with the given numbers what are the steps taken to solving for volume? Thanks ...

Offline AWK

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Re: How many atoms?
« Reply #1 on: September 26, 2007, 11:29:29 AM »
thickness x surface = volume
AWK

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