Ahh. The chain reaction.
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You know when you are surfing the web, your parents tell you, or you surf the web, that you see some things like "STOP GLOBAL WARMING?"
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Yep, I have, at least.
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Well, let's see about the chain reaction...
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You see, where does our energy come from?
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Yes, windmills and solar cells...
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but also nuclear and power plants, no?
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The power plants emit carbon dioxide that contribute to global warming.
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Now, cars do the same. One car may not seems like a lot of carbon dioxide...
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But... this many cars multiplied by 9 trillion times 9 trillion and much more... is...
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Well, you know the difference.
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They contribute to global warming over a period of time, slowly, because they emit carbon monoxide/dioxide.
Mass will increase drastically the GPE since mass since mass is a variable in the formula GPE= mgh. 2.
Epsom salt is MgSO4.
We assume x water of hydration in the crystalline form.
Molecular mass of MgSO4 = 24+32+4*16=120
Molecular mass of MgSO4.xH2O = 120+18x
By proportion,
2.000/0.977 = (120+18x)/120
Cross multiply
0.977(120+18x) = 120*2.000
from which we solve for x
17.586x+117.24 = 240
x=122.78/17.586
=6.980
Answer: there are 7 water of hydration in Epsom salt, according to the experiment.
Note: more accurate (proper) results may be obtained by using exact values (3-4 significant figures) in the molecular masses. However, since water of hydration is the nearest integer, using approximate values (to at least two significant figures) suffice.
Electrons are the only parts of an atom that can make a chemical bond.
