exhaustedstudent
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Can anyone tell me the key equations we need for AS level chemistry that we aren’t given?
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Kian Stevens
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(Original post by exhaustedstudent)
Can anyone tell me the key equations we need for AS level chemistry that we aren’t given?
  • moles = \frac{mass}{Mr}
  • moles = concentration * volume
  • molecules = moles * N_{A}
  • moles = \frac{volume(dm^{3})}{24} = \frac{volume(cm^{3})}{24000}
  • pV = nRT
  • Q = mc \Delta T
  • \Delta H = \frac{Q}{n}

If I can think of any more then I will add them. But these are useful AS level equations.
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W1ltedR0se
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percentage \, yield = \frac{actual \, yield}{theoretical \, yield} \times 100
atom \, economy = \frac{molecular\,mass\,of\,desir  ed\,products}{sum\,of\,molecular  \,masses\;of\,all\,products} \times 100
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exhaustedstudent
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(Original post by Kian Stevens)
  • moles = \frac{mass}{Mr}
  • moles = concentration * volume
  • molecules = moles * N_{A}
  • moles = \frac{volume(dm^{3})}{24} = \frac{volume(cm^{3})}{24000}
  • pV = nRT
  • Q = mc \Delta T
  • \Delta H = \frac{Q}{n}

If I can think of any more then I will add them. But these are useful AS level equations.
awesome, thanks for the help
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exhaustedstudent
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(Original post by W1ltedR0se)
percentage \, yield = \frac{actual \, yield}{theoretical \, yield} \times 100
atom \, economy = \frac{molecular\,mass\,of\,desir  ed\,products}{sum\,of\,molecular  \,masses\;of\,all\,products} \times 100
thanks!
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