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March 30, 2017

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so i know that one mole is 6.022*10^23 particles in 12g of a carbon 12 isotope. im confused in finding the amount of moles in a particular substane. there is a formula that determines it, i think its n=m/M, yet im confused with what it means..

  • chemistry - ,

    # moles = grams/molar mass

    48 g C. How many moles.
    48/12 = 4.0 moles.

    70 g Cl2. How many moles?
    70/70.9 = ??

    536 g AgNO3. How many moles.
    536/169.9 = ??

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