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moles -- chemistry
hmmm, i understand moles and stuff like that... but this is actually quite weird. i have a project to do, i can do the work and everything like that... i'm just having trouble setting up the problem x___x
the question is
"if you placed a mole of skittles side by side, how many trips around the earth's equator could you make?"
i found out how many miles around the equator is ... and it's 24,901.55 miles and for the moles it's 6.02 x 20 to the 23rd power. i'm trying to find out the skittle's length or width however you say it, but i suck at measuring. but when i get all of the information... i still don't know how to set it up, help anyone?
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It would be:
(AvogadroConstant*SkittleDiameter)/EarthCircumference=TimesAroundTheEarth
AvogadroConstant=6.022e23
SkittleDiameter=1.5cm
EarthCircumference=4007516000cm
1. (6.022e23*1.5)/4007516000=x
2. (9.033e23)/4007516000=x
3. 2.254014706367e14=x
4. The skittles could go around the earth about 225,401,470,636,700 times.
In step 1 we determine that the total length of a mole of skittles (using the Avogadro constant) is 9.033e23cm.
In step 2 we determine that 9.033e23cm will go around the earth's equator (4.007516e9) 2.254014706367e14 times.
In step 3 we state our answer.
In step 4 we convert our answer to a sentence, and (optionally) remove the scientific notation.
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