Question
Asked Nov 25, 2019
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Suppose that, from measurements in a microscope, you determine that a certain layer of graphene covers an area of 1.80um2. Convert this to square meters. 

Express the area in square meters to three significant figures.

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Expert Answer

Step 1

 

Given data

Graphene has a layer of thickness=1.80 µm2

Step 2

Area

...
1.80um2
if one um is equal to 10'm
then um2 is equa to 10 x 10 m2
10-12 m2
final area 1.80m2
2
= 1.80 x1012
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1.80um2 if one um is equal to 10'm then um2 is equa to 10 x 10 m2 10-12 m2 final area 1.80m2 2 = 1.80 x1012

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