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    BigD's Avatar
    BigD Posts: 9, Reputation: 1
    New Member
     
    #1

    Aug 22, 2006, 10:06 PM
    atoms in grain of sand
    Estimate the number of atoms in a grain of sand. Assume the grain is a
    0.25mm (on each side) cube and that average distance between atoms is
    10^-10m.


    Please help me answer this question I have a lot of trouble solving it. Can u show the steps too. Thank you sooo much.
    RickJ's Avatar
    RickJ Posts: 7,762, Reputation: 864
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    #2

    Aug 23, 2006, 02:27 AM
    Here, check this out:
    http://www.madsci.org/posts/archives...6798.Ph.r.html
    BigD's Avatar
    BigD Posts: 9, Reputation: 1
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    #3

    Aug 23, 2006, 12:54 PM
    Thanks a lot RickJ. Very fast explanation of the problem. Thanks again for helping.

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