anonymous
  • anonymous
Aluminum oxide can be formed from its elements. How many grams of aluminum will react with 12.0 L of oxygen at STP?
Chemistry
schrodinger
  • schrodinger
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anonymous
  • anonymous
This has a formula right?
anonymous
  • anonymous
I can help you, but just making sure
anonymous
  • anonymous
No the problem does not include a equation

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anonymous
  • anonymous
Oh okay thank you, do you want me to upload the problem?
anonymous
  • anonymous
Yeah that's fine :3
anonymous
  • anonymous
Well first tell me, what's the atomic weight of Al?
anonymous
  • anonymous
26.98
anonymous
  • anonymous
This is the problem and the attempt I have done for it.
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anonymous
  • anonymous
Okay, so this problem involves stoicheomitry
anonymous
  • anonymous
Yeah I think so, but I'm not sure if what I did was right
anonymous
  • anonymous
You're on the right track about the Oxygen part but you got to convert the moles of oxygen into moles Al
anonymous
  • anonymous
yeah I used the ratio of 2/3 as the conversion since no conversion was given. I used 2/3 because of Al2O3
anonymous
  • anonymous
so I multiplied 2/3 by the moles of O2 (.54) in order to get the moles of Al
anonymous
  • anonymous
You don't need to convert the number into moles of Al, Al is simply 1 mol- on the denominator if numerator.
anonymous
  • anonymous
and multiply this by the MW of Al
anonymous
  • anonymous
so multiply .54 by the molar mass of Al?
anonymous
  • anonymous
Yeah, but you can solve this problem using one whole stoicheiomectric uhh setup.
anonymous
  • anonymous
oh okay, thanks. If you don't mind, could I ask you 2 more equations?
anonymous
  • anonymous
sorry I meant to say questions
anonymous
  • anonymous
hould look like this. But sure!
anonymous
  • anonymous
Should*
anonymous
  • anonymous
yeah I did learn it like that too, but my professor wants us to write it out like the way I showed you.
anonymous
  • anonymous
Ah alright. Well are you in Chemistry Honors or AP CHem. ?
anonymous
  • anonymous
But you wrote it correctly also!
anonymous
  • anonymous
I'm actually in college right now and I'm talking chem
anonymous
  • anonymous
That's awesome. Well I'll help either way! I'm going to college this fall. Anyways, your qestions?
anonymous
  • anonymous
Cool!!! Did I write these two question right? I feel like I did not.
anonymous
  • anonymous
first one is right. And 2nd one, you go to balance the equation first which you're doing.. and hold on lemme do the equation
anonymous
  • anonymous
Okay, yeah cause I was getting confused on how to balance the second equation
anonymous
  • anonymous
ugh now I'm stuck on the balancing .-.
anonymous
  • anonymous
yeah... thats where I got stuck too. I can do the rest of the problem easily but the balancing part is really messing me up
anonymous
  • anonymous
Umm could you ask your professor though and let me know too? Ugh sorry about that :C
anonymous
  • anonymous
Yeah I tried doing that and he as not emailed me back yet. And plus my exam is tomorrow, so idk when he's going to email me back. But thank you soo much for you help!!! (:
anonymous
  • anonymous
And don't worry about it, you've helped me a lot!!!!!
anonymous
  • anonymous
wait, maybe no balancing is required. There's 2.5 M of potassium ssulfite
anonymous
  • anonymous
Or maybe oh crap .-. but you're welcome though!

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