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Can someone just check this mole answer for me please? watch

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    In 20.65cm^3 there are 8.33x10^-4 moles of H3X (3 is subscript)
    I need to work out how many moles are in 250cm^3

    I did this by putting 8.333x10^-4 divided by 20.65. which gave me 10.08x10^-3.

    Might seem really basic but just want to make sure I am doing it right
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    That's good!
 
 
 
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Updated: March 21, 2011
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Do you agree with the proposed ban on plastic straws and cotton buds?

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