- #1
ilovewatermelon
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Help with periodic Table question, express the area in square meters
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Discussion Overview
The discussion revolves around a question related to converting units, specifically from miles to square meters, in the context of a periodic table problem. The focus includes unit conversion methods and the importance of maintaining dimensional consistency.
Discussion Character
- Homework-related, Mathematical reasoning
Main Points Raised
- One participant provides a detailed unit conversion method from miles to kilometers, emphasizing the need to square the conversion factor for area calculations.
- The same participant points out a potential oversight regarding the units, suggesting that the original problem may not have properly accounted for square meters.
- Another participant mentions posting an incorrect image related to the problem, indicating a need for clarification.
- A further post references an external resource for the periodic table, specifically asking about the information for chromium ($\ce{Cr}$).
Areas of Agreement / Disagreement
There is no consensus on the original problem's specifics, as one participant questions the difficulty of the problem while another acknowledges a mistake in posting. The discussion remains unresolved regarding the correct approach to the unit conversion.
- #2
tkhunny
- 256
- 0
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. $m^{2}$?
$1\;mile\cdot\dfrac{5280\;ft}{1\;mile}\cdot\dfrac{12\;in}{1\;ft}\cdot\dfrac{2.54\;cm}{1\;in}\cdot\dfrac{1\;m}{100\;cm}\cdot\dfrac{1\;km}{1000\;m}$
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. $m^{2}$?
Last edited:
- #3
- #4
I like Serena
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MHB
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ilovewatermelon said:
We can find the periodic table for instance here: https://www.ptable.com
Which numbers are listed for $\ce{Cr}$?
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