How Many Atoms of Nickel Are Needed to Plate a Steel Part?

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To determine the number of nickel atoms needed to plate a steel part with a surface area of 200 in² and a thickness of 0.002 in, first calculate the volume by multiplying the surface area by the thickness. Next, use the density of nickel to convert the volume into mass. Finally, apply Avogadro's number to find the total number of atoms from the mass. The initial calculations provided seem to be incorrect, and sharing them could help identify any errors. Accurate calculations are essential for determining the required number of nickel atoms for plating.
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in order to plate a steel part that has a surface area of 200 in^2 with a 0.002 in thick layer of nickle, how many atoms of nickle are required

not looking for an answer i just need help on what to do. i know how to find how many atoms of somthing when given the weight. just not sure what to do in this case. i was thinking find the volume by 200 * 0.002 then using the density of nickle to find the mass and then go from there. But the numbers i was getting didt seem right.
 
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Your approach looks correct. Can you show us the calculations?
 

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