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I'm pretty sure this is a PVNRT problem. Do you know the ideal gas law formula?
Okay, well the first thing you need to go is find out how many moles of Oxygen you have, using the ideal gas law formula
Can you show me how to do that?
I think so, one sec let me look
I attempted it by plugging it into the formula before but I just don't think I got the right answer
You should know the formula if you have a test later :s but it's really easy to remember! It's PVNRT. Or PV = nRT where p = pressure (atm) v = volume (L) R = gas constant n = moles (mol) t = temperature (T)
So, use the values given in the problem to solve for n, which equals the number of moles of Oxygen gas. What value did you get?
I got 0.634 moles
Okay awesome. So there's 0.634 moles of Oxygen. Since you have a chemical equation and the moles of Oxygen, do you think you sort of know how to get to the moles of C2H4?
That's where I get lost lol
That's okay. That's where most people get lost. So, at this point we have to use dimensional analysis. Just a fancy word of saying to get from one thing to another. My high school chem teacher used to call it train-and-caboose
You have to use the chemical equation to determine the ratio. So, for every 3 mol of Oxygen there's 1 mol of C2H4
|dw:1440095235516:dw| make sure to cross out your units
Ok thank you, I'll try it :)
Okay! Practice makes perfect! Let me know if you have anymore questions
Ok, sorry I'm really tired haha. How am I supposed to plug it in?
What do you mean? Can you clarify? Plug in what? Do you mean the ideal gas law formula or dimensional analysis?
Oh okay, well that's a little different. The only way to really understand it is by doing practice problems, but I generally use this sort of thinking: |dw:1440096529907:dw|
heres a link that might help http://www.katmarsoftware.com/articles/railroad-track-unit-conversion.htm
Ohh I see, thank you so much