MHB Help with periodic Table question, express the area in square meters

AI Thread Summary
The discussion centers on converting miles to kilometers and emphasizes the importance of squaring the conversion factor when calculating area. Participants note that the original poster may have overlooked the squared units, which is crucial for accurate results. There is also a mention of potential confusion regarding unit representation, particularly with square meters. Additionally, a link to a periodic table is provided for reference, specifically inquiring about the values for chromium (Cr). Accurate unit conversion and attention to detail are highlighted as key to solving the problem.
ilovewatermelon
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HInt: The long way from miles to kilometers...

$1\;mile\cdot\dfrac{5280\;ft}{1\;mile}\cdot\dfrac{12\;in}{1\;ft}\cdot\dfrac{2.54\;cm}{1\;in}\cdot\dfrac{1\;m}{100\;cm}\cdot\dfrac{1\;km}{1000\;m}$

Why is your problem any more difficult than this one?

Anyway, you seem to have forgotten that it was SQUARED and you didn't find the right factor.

$1\;\mu m = 10^{-6}\;m$

It's also possible the system is wondering where your units are hiding. $m^{2}$?
 
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I accidentally posted the wrong picture to go with it. Gonna post another picture
 

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ilovewatermelon said:
I accidentally posted the wrong picture to go with it. Gonna post another picture

We can find the periodic table for instance here: https://www.ptable.com
Which numbers are listed for $\ce{Cr}$?
 

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