Chemistry

How many carbon atoms are there in a diamond (pure carbon) with a mass of 50 ?

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  1. grams? kilograms ? Carats ?

    If grams (pretty big)

    6*10^23 carbon atoms weigh 12 grams
    so
    50 grams * 6*10^23 / 12 = 25*10^23 = 2.5*10^24 atoms

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  2. It's 50mg. I really don't understand how to do this.

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  3. It is milligrams, so divide by 1000

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  4. The atomic weight in grams is the mass of 6*10^23 atoms (Avagadro's number)

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