Cards (4)

    • A mole is an amount of a substance in grams which has the same number of particles as there are atoms in 12 grams of carbon-12
      • One mole contains 6.02 x 10^23 particles.
      • One mole of each substance weighs the same in grams as its mass number.
    • Equation:
      • Number of moles = mass of substance / Mr
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