Intro to Chemistry 7.6: Gas Stoichiometry (1/2)

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Uploaded by on Jul 16, 2010

Join Award winning teachers Jonathan Bergmann and Aaron Sams as they interactively teach Chemistry.

7.6: Gas Stoichiometry

This video will teach students how to do stoichiometry problems that involve gases at non-standard conditions.

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Education

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Standard YouTube License

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  • omg why does my teacher suck so much and these youtube videos ACTUALLY help me?

  • im getting 12.5L? what am i doing wrong?

  • THANK YOU!!! I learned this in like 10 minutes with you guys than spending like 3 hours with me teacher!

  • uhh wheres kahn academy when you need it

  • @adiavoy You use 0.0821 as the constant when your pressure is in ATM. when your pressure is in kPa, you use 8.314 ;)

  • you guys are awesome , i have an exam tomorrow and this helps me review . you guys should become a youtube partner and get paid for this .you got a new subscriber from Canada

  • @ghidfg There are 3 different constants, though I believe the most commonly used R is 0.0821. That is if you are using atm as your unit of pressure. If is 8.314 (which is what you were assuming), it would be if the unit of pressure were in kPa. Then if the unit of pressure were in mm Hg, your constant would be 62.4. (:

    @Learning4Mastery Thanks so much for this video, it really cleared up a lot! (:

  • This is great, better than my teachers explanation.

  • @ghidfg

    oh actually nevermind, it is 8.314 if you're using joules for the temperature, i usually use kelvin. 

  • @ghidfg

    hmm... no, the constant (R) is always 0.0821... or that's what i was taught if you're plugging it into PV=nRT

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