Richtee Posted July 14, 2008 Posted July 14, 2008 I debated posting this in the chem section, mods feel free to move it there...but it's SOO basic... Been a long time removed from a chem book for me but I seem to recall: If I'm given an equation say... 4 (x)+ 1 (y) = yadayada, if I want to formulate the compound on the left, I find the molar weights to do this as in (x)=3 (y)=2 molar weights- so mass wise...errr incorrectly WEIGHT wise it's like 12 +2. Correct?
Bonny Posted July 14, 2008 Posted July 14, 2008 This site might help:http://misterguch.brinkster.net/molarmass.html
Richtee Posted July 14, 2008 Author Posted July 14, 2008 This site might help:http://misterguch.brinkster.net/molarmass.html oook... sooo given I have the mol weight of element/compound X and Y, I am correct...yes?
Bonny Posted July 14, 2008 Posted July 14, 2008 I think you have the idea. Here's an example using 1 mol of BaCO3: BaCO3 + 2HNO3 = Ba(NO3)2 + CO2 + H2O 197.336g + 2(63.012) = 261.336g + 44.0095 +18.01524 323.36 = 323.36 Hope that helps.
Richtee Posted July 14, 2008 Author Posted July 14, 2008 BaCO3 + 2HNO3 = Ba(NO3)2 + CO2 + H2O 197.336g + 2(63.012) = 261.336g + 44.0095 +18.01524 323.36 = 323.36 Hope that helps. Yep...Thank ya kindly Sir! Gads chem used to suck. One of the most inexact sciences I ever seen! More exceptions than rules I swear. LOL... loved my physics tho.
Bonny Posted July 15, 2008 Posted July 15, 2008 Rather than inexact, I'd look at chemistry as a more complicated science. I loved chemistry in highschool, and hated physics.
FrankRizzo Posted July 15, 2008 Posted July 15, 2008 http://imgs.xkcd.com/comics/purity.png If you guys have never read XKCD.com, you really need to. New strips every Mon, Wed, Fri.
Richtee Posted July 15, 2008 Author Posted July 15, 2008 http://imgs.xkcd.com/comics/purity.png Hah! That's funny shit right there! I like the Red Wings reference. Din't know Al Sobotka was a biologist!<The "official" Octopi remover at Joe Louis Arena>
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