Mole Concept

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Last updated 6:08 AM on 8/20/26
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13 Terms

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Mole

Mathematical number whose value is 6.022×1023

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Avagadro’s Number (NA)

6.022×1023

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Mole, NA, Molecular/Atomic Weight

1 mole = 6.022×1023 = NA = MW/AW of X

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Molar Mass

Molecular Weight

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Molar Mass Units

g/mol

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Mole Derivation

Derived from no of atoms present in 12g of C-12 isotope

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n in mole formulae

n = # of moles

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Mole formula w Wt + AW/MW

n = Wt of substance/AW/MW

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Mole w Volume

n = volume of gas in dm3 NTP/22.4 dm3


Same for liters, just change units

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Mole with # of particles

n = # of particles/6.022 × 1023

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Wt of 1 atom (mole related)

Wt of 1 atom = AW/6.022×1023

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Wt of 1 molecule (mole related)

Wt of 1 molecule = MW/6.022×1023

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Relative Molar Mass

Sum of atomic mass of all atoms in the molecule