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Moles and gases... watch

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    Ok, I'm currently doing GCSE chemistry and we have been told in our notes from our teacher that one mole of gas occupies 24dm3at room temp, yet my sister's AS text book says it occupies 22.4dm3 :confused: . Could someone explain how this works, or is one wrong??

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    I've never heard of it being 22.4, In all the books I've read its 24dm cubed.
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    i know the mole
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    22.4 i think is the occupation area at 0 degrees celcius, 24 is at room temp

    i've always used 24 - stick with that unless they give you a different value
 
 
 
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