Asked by bekah
An award is being plated with pure gold before it its presented to a recipient. If the area of the award is 55.0 cm^3 and will be plated with 3.00 micrometers of Au, what mass of Au will be plated on the award? The density of Au is 19.3 g/cm^3.
Answers
Answered by
Damon
AREA is NOT in cm^3 but in cm^2
Should I trust the rest of what you tyoed?
Oh well
3 * 10^-6 meters(10^2 cm/m) = 3*10^-4 cm
3*10^-4 * .55*10^2 = 1.65*10^-2 cm^3
19.3 g/cm^3 * 1.65*10^-2 cm^3 = .318 g
Should I trust the rest of what you tyoed?
Oh well
3 * 10^-6 meters(10^2 cm/m) = 3*10^-4 cm
3*10^-4 * .55*10^2 = 1.65*10^-2 cm^3
19.3 g/cm^3 * 1.65*10^-2 cm^3 = .318 g
Answered by
DrBob222
So the volume will be area x thickness = 55 cm x 3E-4 cm = ?
mass = volume x density = ?
mass = volume x density = ?
Answered by
bekah
this is what was on my worksheet
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