The density of gold is 19.3 g/cm^3 . A 6. 4 mg piece of gold is hammered into a square that is 8.6x10^-6 cm thick.( a.) Calculate the thickness of gold in um (micrometers) (b) What is the length of a side of the square, in cm?
The density of gold is 19.3 g/cm^3 . A 6. 4 mg piece of gold is hammered into a square that is 8.6x10^-6 cm thick.( a.) Calculate the thickness of gold in um (micrometers) (b) What is the length of a side of the square, in cm?
Part (a):
The thickness of gold which is hammered into square is given in centimeters as: 8.6*10-6 cm
And we know that 1 centimeter=10000 micrometers
Hence
1 cm = 10000 micrometers
8.6*-6 cm = (10000 micrometers/1 cm)* 8.6*10-6 cm
Or calculation is given below,
The thickness of gold in µm (micrometers) is 0.086 µm
Part (b):
The density of gold is given as: 19.3 g/cm3
Mass of gold is given as: 6.4 mg
And thickness of gold is given as: 8.6*10-6 cm
...
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