CHEM-C 101 Lecture Notes - Lecture 23: Molar Mass, Carbon-12, Unified Atomic Mass Unit
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The mole: relates the number of atoms or molecules to grams, a(cid:271)(cid:271)re(cid:448)iatio(cid:374) is (cid:862)(cid:373)ol(cid:863, co(cid:374)(cid:448)ersio(cid:374)s are si(cid:373)ilar to (cid:862)(cid:1005)(cid:1006) ite(cid:373)s=(cid:1005) doze(cid:374)(cid:863, 1 mol= 6. 022 x 1023 items. If you counted all the grains of sand on earth, you (cid:449)ould(cid:374)"t get to (cid:1005) (cid:373)ole: number of atoms/molecules in 1 mole, 6. 022 x 1023, conversion factors, 1 mole of something or. 1 mole of something: the definition of the mole is based on the isotope carbon-12, exactly 12 grams of carbon-12 contains exactly one mole of carbon-12 atoms, 12 grams c-12=1 mole c-12.
